Home / 129,958.20-194,937.30-31,462.20

Finding the Fourth Proportional to 129,958.20, 194,937.30 and 31,462.20

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Solution

The fourth proportional to 129,958.20, 194,937.30 and 31,462.20 is: 47,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,958.20 : 194,937.30 = 31,462.20 : x
  2. Step 2: Convert to fraction form
    129,958.20/194,937.30 = 31,462.20/x
  3. Step 3: Cross multiply
    129,958.20x = 194,937.30 × 31,462.20
  4. Step 4: Simplify right side
    129,958.20x = 6,133,156,320.06
  5. Step 5: Solve for x
    x = 6,133,156,320.06/129,958.20
  6. Step 6: Final answer
    x = 47,193.30

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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.