Home / 231,073.16-318,875.07-129,099.38

Finding the Fourth Proportional to 231,073.16, 318,875.07 and 129,099.38

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Solution

The fourth proportional to 231,073.16, 318,875.07 and 129,099.38 is: 178,153.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,073.16 : 318,875.07 = 129,099.38 : x
  2. Step 2: Convert to fraction form
    231,073.16/318,875.07 = 129,099.38/x
  3. Step 3: Cross multiply
    231,073.16x = 318,875.07 × 129,099.38
  4. Step 4: Simplify right side
    231,073.16x = 41,166,572,240.08
  5. Step 5: Solve for x
    x = 41,166,572,240.08/231,073.16
  6. Step 6: Final answer
    x = 178,153.85

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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.