Home / 155,265.52-232,732.18-80,310.20

Finding the Fourth Proportional to 155,265.52, 232,732.18 and 80,310.20

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Solution

The fourth proportional to 155,265.52, 232,732.18 and 80,310.20 is: 120,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,265.52 : 232,732.18 = 80,310.20 : x
  2. Step 2: Convert to fraction form
    155,265.52/232,732.18 = 80,310.20/x
  3. Step 3: Cross multiply
    155,265.52x = 232,732.18 × 80,310.20
  4. Step 4: Simplify right side
    155,265.52x = 18,690,768,604.45
  5. Step 5: Solve for x
    x = 18,690,768,604.45/155,265.52
  6. Step 6: Final answer
    x = 120,379.39

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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.