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Finding the Fourth Proportional to 159,609.48, 220,262.52 and 87,992.04

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Solution

The fourth proportional to 159,609.48, 220,262.52 and 87,992.04 is: 121,429.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,609.48 : 220,262.52 = 87,992.04 : x
  2. Step 2: Convert to fraction form
    159,609.48/220,262.52 = 87,992.04/x
  3. Step 3: Cross multiply
    159,609.48x = 220,262.52 × 87,992.04
  4. Step 4: Simplify right side
    159,609.48x = 19,381,348,470.34
  5. Step 5: Solve for x
    x = 19,381,348,470.34/159,609.48
  6. Step 6: Final answer
    x = 121,429.81

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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.