Home / 124,198.20-186,321.60-53,120.70

Finding the Fourth Proportional to 124,198.20, 186,321.60 and 53,120.70

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Solution

The fourth proportional to 124,198.20, 186,321.60 and 53,120.70 is: 79,691.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,198.20 : 186,321.60 = 53,120.70 : x
  2. Step 2: Convert to fraction form
    124,198.20/186,321.60 = 53,120.70/x
  3. Step 3: Cross multiply
    124,198.20x = 186,321.60 × 53,120.70
  4. Step 4: Simplify right side
    124,198.20x = 9,897,533,817.12
  5. Step 5: Solve for x
    x = 9,897,533,817.12/124,198.20
  6. Step 6: Final answer
    x = 79,691.44

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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.