Home / 129,507.72-194,275.50-40,763.88

Finding the Fourth Proportional to 129,507.72, 194,275.50 and 40,763.88

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Solution

The fourth proportional to 129,507.72, 194,275.50 and 40,763.88 is: 61,150.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,507.72 : 194,275.50 = 40,763.88 : x
  2. Step 2: Convert to fraction form
    129,507.72/194,275.50 = 40,763.88/x
  3. Step 3: Cross multiply
    129,507.72x = 194,275.50 × 40,763.88
  4. Step 4: Simplify right side
    129,507.72x = 7,919,423,168.94
  5. Step 5: Solve for x
    x = 7,919,423,168.94/129,507.72
  6. Step 6: Final answer
    x = 61,150.20

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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.