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Finding the Fourth Proportional to 159,718, 239,743.08 and 117,645.54

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Solution

The fourth proportional to 159,718, 239,743.08 and 117,645.54 is: 176,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,718 : 239,743.08 = 117,645.54 : x
  2. Step 2: Convert to fraction form
    159,718/239,743.08 = 117,645.54/x
  3. Step 3: Cross multiply
    159,718x = 239,743.08 × 117,645.54
  4. Step 4: Simplify right side
    159,718x = 28,204,704,107.86
  5. Step 5: Solve for x
    x = 28,204,704,107.86/159,718
  6. Step 6: Final answer
    x = 176,590.64

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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.