Home / 113,151.20-156,176.71-65,397.65

Finding the Fourth Proportional to 113,151.20, 156,176.71 and 65,397.65

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Solution

The fourth proportional to 113,151.20, 156,176.71 and 65,397.65 is: 90,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,151.20 : 156,176.71 = 65,397.65 : x
  2. Step 2: Convert to fraction form
    113,151.20/156,176.71 = 65,397.65/x
  3. Step 3: Cross multiply
    113,151.20x = 156,176.71 × 65,397.65
  4. Step 4: Simplify right side
    113,151.20x = 10,213,588,874.35
  5. Step 5: Solve for x
    x = 10,213,588,874.35/113,151.20
  6. Step 6: Final answer
    x = 90,264.97

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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.