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Finding the Fourth Proportional to 99,423.88, 137,204.97 and 54,711.88

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Solution

The fourth proportional to 99,423.88, 137,204.97 and 54,711.88 is: 75,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,423.88 : 137,204.97 = 54,711.88 : x
  2. Step 2: Convert to fraction form
    99,423.88/137,204.97 = 54,711.88/x
  3. Step 3: Cross multiply
    99,423.88x = 137,204.97 × 54,711.88
  4. Step 4: Simplify right side
    99,423.88x = 7,506,741,854.04
  5. Step 5: Solve for x
    x = 7,506,741,854.04/99,423.88
  6. Step 6: Final answer
    x = 75,502.40

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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.