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Finding the Fourth Proportional to 133,963.60, 200,872.40 and 40,457.20

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Solution

The fourth proportional to 133,963.60, 200,872.40 and 40,457.20 is: 60,663.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,963.60 : 200,872.40 = 40,457.20 : x
  2. Step 2: Convert to fraction form
    133,963.60/200,872.40 = 40,457.20/x
  3. Step 3: Cross multiply
    133,963.60x = 200,872.40 × 40,457.20
  4. Step 4: Simplify right side
    133,963.60x = 8,126,734,861.28
  5. Step 5: Solve for x
    x = 8,126,734,861.28/133,963.60
  6. Step 6: Final answer
    x = 60,663.75

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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.