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Finding the Fourth Proportional to 159,519.60, 239,279.40 and 89,389.80

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Solution

The fourth proportional to 159,519.60, 239,279.40 and 89,389.80 is: 134,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,519.60 : 239,279.40 = 89,389.80 : x
  2. Step 2: Convert to fraction form
    159,519.60/239,279.40 = 89,389.80/x
  3. Step 3: Cross multiply
    159,519.60x = 239,279.40 × 89,389.80
  4. Step 4: Simplify right side
    159,519.60x = 21,389,137,710.12
  5. Step 5: Solve for x
    x = 21,389,137,710.12/159,519.60
  6. Step 6: Final answer
    x = 134,084.70

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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.