Home / 124,985.64-172,480.17-68,397

Finding the Fourth Proportional to 124,985.64, 172,480.17 and 68,397

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Solution

The fourth proportional to 124,985.64, 172,480.17 and 68,397 is: 94,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,985.64 : 172,480.17 = 68,397 : x
  2. Step 2: Convert to fraction form
    124,985.64/172,480.17 = 68,397/x
  3. Step 3: Cross multiply
    124,985.64x = 172,480.17 × 68,397
  4. Step 4: Simplify right side
    124,985.64x = 11,797,126,187.49
  5. Step 5: Solve for x
    x = 11,797,126,187.49/124,985.64
  6. Step 6: Final answer
    x = 94,387.85

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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.