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Finding the Fourth Proportional to 163,781.52, 245,672.32 and 45,452.88

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Solution

The fourth proportional to 163,781.52, 245,672.32 and 45,452.88 is: 68,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,781.52 : 245,672.32 = 45,452.88 : x
  2. Step 2: Convert to fraction form
    163,781.52/245,672.32 = 45,452.88/x
  3. Step 3: Cross multiply
    163,781.52x = 245,672.32 × 45,452.88
  4. Step 4: Simplify right side
    163,781.52x = 11,166,514,480.28
  5. Step 5: Solve for x
    x = 11,166,514,480.28/163,781.52
  6. Step 6: Final answer
    x = 68,179.33

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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.