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Finding the Fourth Proportional to 133,776.30, 200,397.10 and 80,439.08

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Solution

The fourth proportional to 133,776.30, 200,397.10 and 80,439.08 is: 120,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,776.30 : 200,397.10 = 80,439.08 : x
  2. Step 2: Convert to fraction form
    133,776.30/200,397.10 = 80,439.08/x
  3. Step 3: Cross multiply
    133,776.30x = 200,397.10 × 80,439.08
  4. Step 4: Simplify right side
    133,776.30x = 16,119,756,954.49
  5. Step 5: Solve for x
    x = 16,119,756,954.49/133,776.30
  6. Step 6: Final answer
    x = 120,497.85

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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.