Home / 141,889.20-195,808.28-78,225.52

Finding the Fourth Proportional to 141,889.20, 195,808.28 and 78,225.52

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Solution

The fourth proportional to 141,889.20, 195,808.28 and 78,225.52 is: 107,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,889.20 : 195,808.28 = 78,225.52 : x
  2. Step 2: Convert to fraction form
    141,889.20/195,808.28 = 78,225.52/x
  3. Step 3: Cross multiply
    141,889.20x = 195,808.28 × 78,225.52
  4. Step 4: Simplify right side
    141,889.20x = 15,317,204,523.31
  5. Step 5: Solve for x
    x = 15,317,204,523.31/141,889.20
  6. Step 6: Final answer
    x = 107,951.87

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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.