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Finding the Fourth Proportional to 159,127.86, 219,590.33 and 87,503.61

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Solution

The fourth proportional to 159,127.86, 219,590.33 and 87,503.61 is: 120,751.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,127.86 : 219,590.33 = 87,503.61 : x
  2. Step 2: Convert to fraction form
    159,127.86/219,590.33 = 87,503.61/x
  3. Step 3: Cross multiply
    159,127.86x = 219,590.33 × 87,503.61
  4. Step 4: Simplify right side
    159,127.86x = 19,214,945,716.90
  5. Step 5: Solve for x
    x = 19,214,945,716.90/159,127.86
  6. Step 6: Final answer
    x = 120,751.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.