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Finding the Fourth Proportional to 162,998.87, 224,938.28 and 91,378.90

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Solution

The fourth proportional to 162,998.87, 224,938.28 and 91,378.90 is: 126,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,998.87 : 224,938.28 = 91,378.90 : x
  2. Step 2: Convert to fraction form
    162,998.87/224,938.28 = 91,378.90/x
  3. Step 3: Cross multiply
    162,998.87x = 224,938.28 × 91,378.90
  4. Step 4: Simplify right side
    162,998.87x = 20,554,613,103.91
  5. Step 5: Solve for x
    x = 20,554,613,103.91/162,998.87
  6. Step 6: Final answer
    x = 126,102.80

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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.