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Finding the Fourth Proportional to 129,007.62, 193,423.59 and 65,672.10

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Solution

The fourth proportional to 129,007.62, 193,423.59 and 65,672.10 is: 98,463.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,007.62 : 193,423.59 = 65,672.10 : x
  2. Step 2: Convert to fraction form
    129,007.62/193,423.59 = 65,672.10/x
  3. Step 3: Cross multiply
    129,007.62x = 193,423.59 × 65,672.10
  4. Step 4: Simplify right side
    129,007.62x = 12,702,533,344.84
  5. Step 5: Solve for x
    x = 12,702,533,344.84/129,007.62
  6. Step 6: Final answer
    x = 98,463.43

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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.