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Finding the Fourth Proportional to 159,621.60, 239,432.40 and 88,762.80

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Solution

The fourth proportional to 159,621.60, 239,432.40 and 88,762.80 is: 133,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,621.60 : 239,432.40 = 88,762.80 : x
  2. Step 2: Convert to fraction form
    159,621.60/239,432.40 = 88,762.80/x
  3. Step 3: Cross multiply
    159,621.60x = 239,432.40 × 88,762.80
  4. Step 4: Simplify right side
    159,621.60x = 21,252,690,234.72
  5. Step 5: Solve for x
    x = 21,252,690,234.72/159,621.60
  6. Step 6: Final answer
    x = 133,144.20

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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.