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Finding the Fourth Proportional to 159,771.20, 239,851.20 and 80,844.80

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Solution

The fourth proportional to 159,771.20, 239,851.20 and 80,844.80 is: 121,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,771.20 : 239,851.20 = 80,844.80 : x
  2. Step 2: Convert to fraction form
    159,771.20/239,851.20 = 80,844.80/x
  3. Step 3: Cross multiply
    159,771.20x = 239,851.20 × 80,844.80
  4. Step 4: Simplify right side
    159,771.20x = 19,390,722,293.76
  5. Step 5: Solve for x
    x = 19,390,722,293.76/159,771.20
  6. Step 6: Final answer
    x = 121,365.57

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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.