Home / 410,729.20-616,152.12-126,443.41

Finding the Fourth Proportional to 410,729.20, 616,152.12 and 126,443.41

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Solution

The fourth proportional to 410,729.20, 616,152.12 and 126,443.41 is: 189,683.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,729.20 : 616,152.12 = 126,443.41 : x
  2. Step 2: Convert to fraction form
    410,729.20/616,152.12 = 126,443.41/x
  3. Step 3: Cross multiply
    410,729.20x = 616,152.12 × 126,443.41
  4. Step 4: Simplify right side
    410,729.20x = 77,908,375,131.53
  5. Step 5: Solve for x
    x = 77,908,375,131.53/410,729.20
  6. Step 6: Final answer
    x = 189,683.07

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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.