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Finding the Fourth Proportional to 112,159, 168,265.26 and 38,287

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Solution

The fourth proportional to 112,159, 168,265.26 and 38,287 is: 57,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,159 : 168,265.26 = 38,287 : x
  2. Step 2: Convert to fraction form
    112,159/168,265.26 = 38,287/x
  3. Step 3: Cross multiply
    112,159x = 168,265.26 × 38,287
  4. Step 4: Simplify right side
    112,159x = 6,442,372,009.62
  5. Step 5: Solve for x
    x = 6,442,372,009.62/112,159
  6. Step 6: Final answer
    x = 57,439.63

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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.