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Finding the Fourth Proportional to 159,628.68, 239,591.16 and 80,798.76

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Solution

The fourth proportional to 159,628.68, 239,591.16 and 80,798.76 is: 121,273.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,628.68 : 239,591.16 = 80,798.76 : x
  2. Step 2: Convert to fraction form
    159,628.68/239,591.16 = 80,798.76/x
  3. Step 3: Cross multiply
    159,628.68x = 239,591.16 × 80,798.76
  4. Step 4: Simplify right side
    159,628.68x = 19,358,668,634.96
  5. Step 5: Solve for x
    x = 19,358,668,634.96/159,628.68
  6. Step 6: Final answer
    x = 121,273.12

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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.