Home / 266,538.08-399,610.20-126,132.32

Finding the Fourth Proportional to 266,538.08, 399,610.20 and 126,132.32

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Solution

The fourth proportional to 266,538.08, 399,610.20 and 126,132.32 is: 189,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,538.08 : 399,610.20 = 126,132.32 : x
  2. Step 2: Convert to fraction form
    266,538.08/399,610.20 = 126,132.32/x
  3. Step 3: Cross multiply
    266,538.08x = 399,610.20 × 126,132.32
  4. Step 4: Simplify right side
    266,538.08x = 50,403,761,621.66
  5. Step 5: Solve for x
    x = 50,403,761,621.66/266,538.08
  6. Step 6: Final answer
    x = 189,105.29

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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.