Home / 124,711.29-172,095.17-68,111.73

Finding the Fourth Proportional to 124,711.29, 172,095.17 and 68,111.73

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Solution

The fourth proportional to 124,711.29, 172,095.17 and 68,111.73 is: 93,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,711.29 : 172,095.17 = 68,111.73 : x
  2. Step 2: Convert to fraction form
    124,711.29/172,095.17 = 68,111.73/x
  3. Step 3: Cross multiply
    124,711.29x = 172,095.17 × 68,111.73
  4. Step 4: Simplify right side
    124,711.29x = 11,721,699,412.79
  5. Step 5: Solve for x
    x = 11,721,699,412.79/124,711.29
  6. Step 6: Final answer
    x = 93,990.68

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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.