Home / 124,828.47-172,263.38-68,239.89

Finding the Fourth Proportional to 124,828.47, 172,263.38 and 68,239.89

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Solution

The fourth proportional to 124,828.47, 172,263.38 and 68,239.89 is: 94,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,828.47 : 172,263.38 = 68,239.89 : x
  2. Step 2: Convert to fraction form
    124,828.47/172,263.38 = 68,239.89/x
  3. Step 3: Cross multiply
    124,828.47x = 172,263.38 × 68,239.89
  4. Step 4: Simplify right side
    124,828.47x = 11,755,233,761.03
  5. Step 5: Solve for x
    x = 11,755,233,761.03/124,828.47
  6. Step 6: Final answer
    x = 94,171.10

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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.