Home / 105,729-158,593.50-31,857

Finding the Fourth Proportional to 105,729, 158,593.50 and 31,857

Calculator

Solution

The fourth proportional to 105,729, 158,593.50 and 31,857 is: 47,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,729 : 158,593.50 = 31,857 : x
  2. Step 2: Convert to fraction form
    105,729/158,593.50 = 31,857/x
  3. Step 3: Cross multiply
    105,729x = 158,593.50 × 31,857
  4. Step 4: Simplify right side
    105,729x = 5,052,313,129.50
  5. Step 5: Solve for x
    x = 5,052,313,129.50/105,729
  6. Step 6: Final answer
    x = 47,785.50

Related Problems

Find fourth proportional to 52,864.50, 79,296.75 and 15,928.50
Half scale
Find fourth proportional to 211,458, 317,187 and 63,714
Double scale
Find fourth proportional to 105,730, 158,595 and 31,858
Similar ratio
Find fourth proportional to 158,593.50, 237,890.25 and 47,785.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.