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Finding the Fourth Proportional to 159,891.78, 239,795.88 and 47,541.72

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Solution

The fourth proportional to 159,891.78, 239,795.88 and 47,541.72 is: 71,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,891.78 : 239,795.88 = 47,541.72 : x
  2. Step 2: Convert to fraction form
    159,891.78/239,795.88 = 47,541.72/x
  3. Step 3: Cross multiply
    159,891.78x = 239,795.88 × 47,541.72
  4. Step 4: Simplify right side
    159,891.78x = 11,400,308,584.11
  5. Step 5: Solve for x
    x = 11,400,308,584.11/159,891.78
  6. Step 6: Final answer
    x = 71,300.15

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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.