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Finding the Fourth Proportional to 159,479.70, 239,219.55 and 109,713.30

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Solution

The fourth proportional to 159,479.70, 239,219.55 and 109,713.30 is: 164,569.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,479.70 : 239,219.55 = 109,713.30 : x
  2. Step 2: Convert to fraction form
    159,479.70/239,219.55 = 109,713.30/x
  3. Step 3: Cross multiply
    159,479.70x = 239,219.55 × 109,713.30
  4. Step 4: Simplify right side
    159,479.70x = 26,245,566,255.02
  5. Step 5: Solve for x
    x = 26,245,566,255.02/159,479.70
  6. Step 6: Final answer
    x = 164,569.95

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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.