Home / 129,925.22-194,889.45-45,687.92

Finding the Fourth Proportional to 129,925.22, 194,889.45 and 45,687.92

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Solution

The fourth proportional to 129,925.22, 194,889.45 and 45,687.92 is: 68,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,925.22 : 194,889.45 = 45,687.92 : x
  2. Step 2: Convert to fraction form
    129,925.22/194,889.45 = 45,687.92/x
  3. Step 3: Cross multiply
    129,925.22x = 194,889.45 × 45,687.92
  4. Step 4: Simplify right side
    129,925.22x = 8,904,093,600.44
  5. Step 5: Solve for x
    x = 8,904,093,600.44/129,925.22
  6. Step 6: Final answer
    x = 68,532.45

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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.