Home / 105,229.18-157,882.65-38,712.79

Finding the Fourth Proportional to 105,229.18, 157,882.65 and 38,712.79

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Solution

The fourth proportional to 105,229.18, 157,882.65 and 38,712.79 is: 58,083.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,229.18 : 157,882.65 = 38,712.79 : x
  2. Step 2: Convert to fraction form
    105,229.18/157,882.65 = 38,712.79/x
  3. Step 3: Cross multiply
    105,229.18x = 157,882.65 × 38,712.79
  4. Step 4: Simplify right side
    105,229.18x = 6,112,077,874.09
  5. Step 5: Solve for x
    x = 6,112,077,874.09/105,229.18
  6. Step 6: Final answer
    x = 58,083.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.