Home / 437,610.81-656,415.99-138,121.41

Finding the Fourth Proportional to 437,610.81, 656,415.99 and 138,121.41

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Solution

The fourth proportional to 437,610.81, 656,415.99 and 138,121.41 is: 207,182.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,610.81 : 656,415.99 = 138,121.41 : x
  2. Step 2: Convert to fraction form
    437,610.81/656,415.99 = 138,121.41/x
  3. Step 3: Cross multiply
    437,610.81x = 656,415.99 × 138,121.41
  4. Step 4: Simplify right side
    437,610.81x = 90,665,102,085.35
  5. Step 5: Solve for x
    x = 90,665,102,085.35/437,610.81
  6. Step 6: Final answer
    x = 207,182.04

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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.