Home / 159,816.20-239,690.70-80,856.20

Finding the Fourth Proportional to 159,816.20, 239,690.70 and 80,856.20

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Solution

The fourth proportional to 159,816.20, 239,690.70 and 80,856.20 is: 121,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,816.20 : 239,690.70 = 80,856.20 : x
  2. Step 2: Convert to fraction form
    159,816.20/239,690.70 = 80,856.20/x
  3. Step 3: Cross multiply
    159,816.20x = 239,690.70 × 80,856.20
  4. Step 4: Simplify right side
    159,816.20x = 19,380,479,177.34
  5. Step 5: Solve for x
    x = 19,380,479,177.34/159,816.20
  6. Step 6: Final answer
    x = 121,267.30

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1.5x scale

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.