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Finding the Fourth Proportional to 100,363.70, 150,545.55 and 76,744.10

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Solution

The fourth proportional to 100,363.70, 150,545.55 and 76,744.10 is: 115,116.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,363.70 : 150,545.55 = 76,744.10 : x
  2. Step 2: Convert to fraction form
    100,363.70/150,545.55 = 76,744.10/x
  3. Step 3: Cross multiply
    100,363.70x = 150,545.55 × 76,744.10
  4. Step 4: Simplify right side
    100,363.70x = 11,553,482,743.76
  5. Step 5: Solve for x
    x = 11,553,482,743.76/100,363.70
  6. Step 6: Final answer
    x = 115,116.15

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1.5x scale

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.