Home / 129,281.39-193,953.15-40,534.91

Finding the Fourth Proportional to 129,281.39, 193,953.15 and 40,534.91

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Solution

The fourth proportional to 129,281.39, 193,953.15 and 40,534.91 is: 60,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,281.39 : 193,953.15 = 40,534.91 : x
  2. Step 2: Convert to fraction form
    129,281.39/193,953.15 = 40,534.91/x
  3. Step 3: Cross multiply
    129,281.39x = 193,953.15 × 40,534.91
  4. Step 4: Simplify right side
    129,281.39x = 7,861,872,520.53
  5. Step 5: Solve for x
    x = 7,861,872,520.53/129,281.39
  6. Step 6: Final answer
    x = 60,812.10

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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.