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Finding the Fourth Proportional to 118,142.39, 163,067.51 and 67,184.90

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Solution

The fourth proportional to 118,142.39, 163,067.51 and 67,184.90 is: 92,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,142.39 : 163,067.51 = 67,184.90 : x
  2. Step 2: Convert to fraction form
    118,142.39/163,067.51 = 67,184.90/x
  3. Step 3: Cross multiply
    118,142.39x = 163,067.51 × 67,184.90
  4. Step 4: Simplify right side
    118,142.39x = 10,955,674,016.67
  5. Step 5: Solve for x
    x = 10,955,674,016.67/118,142.39
  6. Step 6: Final answer
    x = 92,732.79

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