Home / 142,132.20-213,198.30-124,621.80

Finding the Fourth Proportional to 142,132.20, 213,198.30 and 124,621.80

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Solution

The fourth proportional to 142,132.20, 213,198.30 and 124,621.80 is: 186,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,132.20 : 213,198.30 = 124,621.80 : x
  2. Step 2: Convert to fraction form
    142,132.20/213,198.30 = 124,621.80/x
  3. Step 3: Cross multiply
    142,132.20x = 213,198.30 × 124,621.80
  4. Step 4: Simplify right side
    142,132.20x = 26,569,155,902.94
  5. Step 5: Solve for x
    x = 26,569,155,902.94/142,132.20
  6. Step 6: Final answer
    x = 186,932.70

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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.