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Finding the Fourth Proportional to 133,873.50, 200,810.94 and 45,127.78

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Solution

The fourth proportional to 133,873.50, 200,810.94 and 45,127.78 is: 67,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,873.50 : 200,810.94 = 45,127.78 : x
  2. Step 2: Convert to fraction form
    133,873.50/200,810.94 = 45,127.78/x
  3. Step 3: Cross multiply
    133,873.50x = 200,810.94 × 45,127.78
  4. Step 4: Simplify right side
    133,873.50x = 9,062,151,921.91
  5. Step 5: Solve for x
    x = 9,062,151,921.91/133,873.50
  6. Step 6: Final answer
    x = 67,691.90

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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.