Home / 105,207.20-157,716.84-38,631.86

Finding the Fourth Proportional to 105,207.20, 157,716.84 and 38,631.86

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Solution

The fourth proportional to 105,207.20, 157,716.84 and 38,631.86 is: 57,913.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,207.20 : 157,716.84 = 38,631.86 : x
  2. Step 2: Convert to fraction form
    105,207.20/157,716.84 = 38,631.86/x
  3. Step 3: Cross multiply
    105,207.20x = 157,716.84 × 38,631.86
  4. Step 4: Simplify right side
    105,207.20x = 6,092,894,882.52
  5. Step 5: Solve for x
    x = 6,092,894,882.52/105,207.20
  6. Step 6: Final answer
    x = 57,913.29

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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.