Home / 129,468.30-194,202.45-76,937.10

Finding the Fourth Proportional to 129,468.30, 194,202.45 and 76,937.10

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Solution

The fourth proportional to 129,468.30, 194,202.45 and 76,937.10 is: 115,405.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,468.30 : 194,202.45 = 76,937.10 : x
  2. Step 2: Convert to fraction form
    129,468.30/194,202.45 = 76,937.10/x
  3. Step 3: Cross multiply
    129,468.30x = 194,202.45 × 76,937.10
  4. Step 4: Simplify right side
    129,468.30x = 14,941,373,315.90
  5. Step 5: Solve for x
    x = 14,941,373,315.90/129,468.30
  6. Step 6: Final answer
    x = 115,405.65

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Similar ratio
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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.