Home / 155,789.29-233,590.45-71,443.80

Finding the Fourth Proportional to 155,789.29, 233,590.45 and 71,443.80

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Solution

The fourth proportional to 155,789.29, 233,590.45 and 71,443.80 is: 107,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,789.29 : 233,590.45 = 71,443.80 : x
  2. Step 2: Convert to fraction form
    155,789.29/233,590.45 = 71,443.80/x
  3. Step 3: Cross multiply
    155,789.29x = 233,590.45 × 71,443.80
  4. Step 4: Simplify right side
    155,789.29x = 16,688,589,391.71
  5. Step 5: Solve for x
    x = 16,688,589,391.71/155,789.29
  6. Step 6: Final answer
    x = 107,122.83

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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.