Home / 129,907.24-194,869.66-45,657.16

Finding the Fourth Proportional to 129,907.24, 194,869.66 and 45,657.16

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Solution

The fourth proportional to 129,907.24, 194,869.66 and 45,657.16 is: 68,488.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,907.24 : 194,869.66 = 45,657.16 : x
  2. Step 2: Convert to fraction form
    129,907.24/194,869.66 = 45,657.16/x
  3. Step 3: Cross multiply
    129,907.24x = 194,869.66 × 45,657.16
  4. Step 4: Simplify right side
    129,907.24x = 8,897,195,245.77
  5. Step 5: Solve for x
    x = 8,897,195,245.77/129,907.24
  6. Step 6: Final answer
    x = 68,488.83

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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.