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Finding the Fourth Proportional to 159,651.60, 239,434.20 and 47,331.60

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Solution

The fourth proportional to 159,651.60, 239,434.20 and 47,331.60 is: 70,984.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,651.60 : 239,434.20 = 47,331.60 : x
  2. Step 2: Convert to fraction form
    159,651.60/239,434.20 = 47,331.60/x
  3. Step 3: Cross multiply
    159,651.60x = 239,434.20 × 47,331.60
  4. Step 4: Simplify right side
    159,651.60x = 11,332,803,780.72
  5. Step 5: Solve for x
    x = 11,332,803,780.72/159,651.60
  6. Step 6: Final answer
    x = 70,984.59

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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.