Home / 129,225.43-193,838.15-40,479.26

Finding the Fourth Proportional to 129,225.43, 193,838.15 and 40,479.26

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Solution

The fourth proportional to 129,225.43, 193,838.15 and 40,479.26 is: 60,718.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,225.43 : 193,838.15 = 40,479.26 : x
  2. Step 2: Convert to fraction form
    129,225.43/193,838.15 = 40,479.26/x
  3. Step 3: Cross multiply
    129,225.43x = 193,838.15 × 40,479.26
  4. Step 4: Simplify right side
    129,225.43x = 7,846,424,003.78
  5. Step 5: Solve for x
    x = 7,846,424,003.78/129,225.43
  6. Step 6: Final answer
    x = 60,718.88

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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.