Home / 127,728.32-176,270.49-71,139.69

Finding the Fourth Proportional to 127,728.32, 176,270.49 and 71,139.69

Calculator

Solution

The fourth proportional to 127,728.32, 176,270.49 and 71,139.69 is: 98,175.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,728.32 : 176,270.49 = 71,139.69 : x
  2. Step 2: Convert to fraction form
    127,728.32/176,270.49 = 71,139.69/x
  3. Step 3: Cross multiply
    127,728.32x = 176,270.49 × 71,139.69
  4. Step 4: Simplify right side
    127,728.32x = 12,539,828,014.75
  5. Step 5: Solve for x
    x = 12,539,828,014.75/127,728.32
  6. Step 6: Final answer
    x = 98,175.79

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.