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Finding the Fourth Proportional to 159,483.20, 239,224.80 and 70,909.70

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Solution

The fourth proportional to 159,483.20, 239,224.80 and 70,909.70 is: 106,364.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,483.20 : 239,224.80 = 70,909.70 : x
  2. Step 2: Convert to fraction form
    159,483.20/239,224.80 = 70,909.70/x
  3. Step 3: Cross multiply
    159,483.20x = 239,224.80 × 70,909.70
  4. Step 4: Simplify right side
    159,483.20x = 16,963,358,800.56
  5. Step 5: Solve for x
    x = 16,963,358,800.56/159,483.20
  6. Step 6: Final answer
    x = 106,364.55

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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.