Home / 155,404.20-233,138.70-88,789.80

Finding the Fourth Proportional to 155,404.20, 233,138.70 and 88,789.80

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Solution

The fourth proportional to 155,404.20, 233,138.70 and 88,789.80 is: 133,203.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,404.20 : 233,138.70 = 88,789.80 : x
  2. Step 2: Convert to fraction form
    155,404.20/233,138.70 = 88,789.80/x
  3. Step 3: Cross multiply
    155,404.20x = 233,138.70 × 88,789.80
  4. Step 4: Simplify right side
    155,404.20x = 20,700,338,545.26
  5. Step 5: Solve for x
    x = 20,700,338,545.26/155,404.20
  6. Step 6: Final answer
    x = 133,203.21

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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.