Home / 119,831.30-179,575.66-87,991.54

Finding the Fourth Proportional to 119,831.30, 179,575.66 and 87,991.54

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Solution

The fourth proportional to 119,831.30, 179,575.66 and 87,991.54 is: 131,861.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,831.30 : 179,575.66 = 87,991.54 : x
  2. Step 2: Convert to fraction form
    119,831.30/179,575.66 = 87,991.54/x
  3. Step 3: Cross multiply
    119,831.30x = 179,575.66 × 87,991.54
  4. Step 4: Simplify right side
    119,831.30x = 15,801,138,869.92
  5. Step 5: Solve for x
    x = 15,801,138,869.92/119,831.30
  6. Step 6: Final answer
    x = 131,861.53

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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.