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Finding the Fourth Proportional to 179,348, 247,517.52 and 99,860

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Solution

The fourth proportional to 179,348, 247,517.52 and 99,860 is: 137,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,348 : 247,517.52 = 99,860 : x
  2. Step 2: Convert to fraction form
    179,348/247,517.52 = 99,860/x
  3. Step 3: Cross multiply
    179,348x = 247,517.52 × 99,860
  4. Step 4: Simplify right side
    179,348x = 24,717,099,547.20
  5. Step 5: Solve for x
    x = 24,717,099,547.20/179,348
  6. Step 6: Final answer
    x = 137,816.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.