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Finding the Fourth Proportional to 162,355.62, 224,042.43 and 90,721.65

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Solution

The fourth proportional to 162,355.62, 224,042.43 and 90,721.65 is: 125,191.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,355.62 : 224,042.43 = 90,721.65 : x
  2. Step 2: Convert to fraction form
    162,355.62/224,042.43 = 90,721.65/x
  3. Step 3: Cross multiply
    162,355.62x = 224,042.43 × 90,721.65
  4. Step 4: Simplify right side
    162,355.62x = 20,325,498,919.61
  5. Step 5: Solve for x
    x = 20,325,498,919.61/162,355.62
  6. Step 6: Final answer
    x = 125,191.22

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1.5x scale

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.