Home / 129,916.92-194,943.74-92,209.80

Finding the Fourth Proportional to 129,916.92, 194,943.74 and 92,209.80

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Solution

The fourth proportional to 129,916.92, 194,943.74 and 92,209.80 is: 138,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,916.92 : 194,943.74 = 92,209.80 : x
  2. Step 2: Convert to fraction form
    129,916.92/194,943.74 = 92,209.80/x
  3. Step 3: Cross multiply
    129,916.92x = 194,943.74 × 92,209.80
  4. Step 4: Simplify right side
    129,916.92x = 17,975,723,276.65
  5. Step 5: Solve for x
    x = 17,975,723,276.65/129,916.92
  6. Step 6: Final answer
    x = 138,363.22

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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.