Home / 124,828.97-172,264.07-68,240.39

Finding the Fourth Proportional to 124,828.97, 172,264.07 and 68,240.39

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Solution

The fourth proportional to 124,828.97, 172,264.07 and 68,240.39 is: 94,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,828.97 : 172,264.07 = 68,240.39 : x
  2. Step 2: Convert to fraction form
    124,828.97/172,264.07 = 68,240.39/x
  3. Step 3: Cross multiply
    124,828.97x = 172,264.07 × 68,240.39
  4. Step 4: Simplify right side
    124,828.97x = 11,755,366,978.59
  5. Step 5: Solve for x
    x = 11,755,366,978.59/124,828.97
  6. Step 6: Final answer
    x = 94,171.79

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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.