Home / 140,819.60-194,330.76-77,159.44

Finding the Fourth Proportional to 140,819.60, 194,330.76 and 77,159.44

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Solution

The fourth proportional to 140,819.60, 194,330.76 and 77,159.44 is: 106,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,819.60 : 194,330.76 = 77,159.44 : x
  2. Step 2: Convert to fraction form
    140,819.60/194,330.76 = 77,159.44/x
  3. Step 3: Cross multiply
    140,819.60x = 194,330.76 × 77,159.44
  4. Step 4: Simplify right side
    140,819.60x = 14,994,452,616.37
  5. Step 5: Solve for x
    x = 14,994,452,616.37/140,819.60
  6. Step 6: Final answer
    x = 106,479.87

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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.