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Finding the Fourth Proportional to 159,809.10, 239,713.65 and 89,679.30

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Solution

The fourth proportional to 159,809.10, 239,713.65 and 89,679.30 is: 134,518.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,809.10 : 239,713.65 = 89,679.30 : x
  2. Step 2: Convert to fraction form
    159,809.10/239,713.65 = 89,679.30/x
  3. Step 3: Cross multiply
    159,809.10x = 239,713.65 × 89,679.30
  4. Step 4: Simplify right side
    159,809.10x = 21,497,352,332.45
  5. Step 5: Solve for x
    x = 21,497,352,332.45/159,809.10
  6. Step 6: Final answer
    x = 134,518.95

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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.