Home / 129,924.72-194,888.70-45,687.42

Finding the Fourth Proportional to 129,924.72, 194,888.70 and 45,687.42

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Solution

The fourth proportional to 129,924.72, 194,888.70 and 45,687.42 is: 68,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,924.72 : 194,888.70 = 45,687.42 : x
  2. Step 2: Convert to fraction form
    129,924.72/194,888.70 = 45,687.42/x
  3. Step 3: Cross multiply
    129,924.72x = 194,888.70 × 45,687.42
  4. Step 4: Simplify right side
    129,924.72x = 8,903,961,890.15
  5. Step 5: Solve for x
    x = 8,903,961,890.15/129,924.72
  6. Step 6: Final answer
    x = 68,531.70

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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.