Home / 129,932.90-194,900.70-45,695.42

Finding the Fourth Proportional to 129,932.90, 194,900.70 and 45,695.42

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Solution

The fourth proportional to 129,932.90, 194,900.70 and 45,695.42 is: 68,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,932.90 : 194,900.70 = 45,695.42 : x
  2. Step 2: Convert to fraction form
    129,932.90/194,900.70 = 45,695.42/x
  3. Step 3: Cross multiply
    129,932.90x = 194,900.70 × 45,695.42
  4. Step 4: Simplify right side
    129,932.90x = 8,906,069,344.79
  5. Step 5: Solve for x
    x = 8,906,069,344.79/129,932.90
  6. Step 6: Final answer
    x = 68,543.60

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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.