Home / 129,711.89-194,573.69-39,748.13

Finding the Fourth Proportional to 129,711.89, 194,573.69 and 39,748.13

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Solution

The fourth proportional to 129,711.89, 194,573.69 and 39,748.13 is: 59,623.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,711.89 : 194,573.69 = 39,748.13 : x
  2. Step 2: Convert to fraction form
    129,711.89/194,573.69 = 39,748.13/x
  3. Step 3: Cross multiply
    129,711.89x = 194,573.69 × 39,748.13
  4. Step 4: Simplify right side
    129,711.89x = 7,733,940,324.70
  5. Step 5: Solve for x
    x = 7,733,940,324.70/129,711.89
  6. Step 6: Final answer
    x = 59,623.99

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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.