Home / 108,438.35-149,643.45-60,691.68

Finding the Fourth Proportional to 108,438.35, 149,643.45 and 60,691.68

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Solution

The fourth proportional to 108,438.35, 149,643.45 and 60,691.68 is: 83,753.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,438.35 : 149,643.45 = 60,691.68 : x
  2. Step 2: Convert to fraction form
    108,438.35/149,643.45 = 60,691.68/x
  3. Step 3: Cross multiply
    108,438.35x = 149,643.45 × 60,691.68
  4. Step 4: Simplify right side
    108,438.35x = 9,082,112,381.50
  5. Step 5: Solve for x
    x = 9,082,112,381.50/108,438.35
  6. Step 6: Final answer
    x = 83,753.70

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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.