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Finding the Fourth Proportional to 133,787.30, 200,510.85 and 54,812.30

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Solution

The fourth proportional to 133,787.30, 200,510.85 and 54,812.30 is: 82,148.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,787.30 : 200,510.85 = 54,812.30 : x
  2. Step 2: Convert to fraction form
    133,787.30/200,510.85 = 54,812.30/x
  3. Step 3: Cross multiply
    133,787.30x = 200,510.85 × 54,812.30
  4. Step 4: Simplify right side
    133,787.30x = 10,990,460,863.46
  5. Step 5: Solve for x
    x = 10,990,460,863.46/133,787.30
  6. Step 6: Final answer
    x = 82,148.76

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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.