Home / 100.61-151.12-60.01

Finding the Fourth Proportional to 100.61, 151.12 and 60.01

Calculator

Solution

The fourth proportional to 100.61, 151.12 and 60.01 is: 90.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.61 : 151.12 = 60.01 : x
  2. Step 2: Convert to fraction form
    100.61/151.12 = 60.01/x
  3. Step 3: Cross multiply
    100.61x = 151.12 × 60.01
  4. Step 4: Simplify right side
    100.61x = 9,068.07
  5. Step 5: Solve for x
    x = 9,068.07/100.61
  6. Step 6: Final answer
    x = 90.13

Related Problems

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.