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Finding the Fourth Proportional to 159,458.58, 239,227.14 and 47,138.28

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Solution

The fourth proportional to 159,458.58, 239,227.14 and 47,138.28 is: 70,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,458.58 : 239,227.14 = 47,138.28 : x
  2. Step 2: Convert to fraction form
    159,458.58/239,227.14 = 47,138.28/x
  3. Step 3: Cross multiply
    159,458.58x = 239,227.14 × 47,138.28
  4. Step 4: Simplify right side
    159,458.58x = 11,276,755,908.92
  5. Step 5: Solve for x
    x = 11,276,755,908.92/159,458.58
  6. Step 6: Final answer
    x = 70,719.03

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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.