Home / 156,517.47-215,992.49-84,895.97

Finding the Fourth Proportional to 156,517.47, 215,992.49 and 84,895.97

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Solution

The fourth proportional to 156,517.47, 215,992.49 and 84,895.97 is: 117,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,517.47 : 215,992.49 = 84,895.97 : x
  2. Step 2: Convert to fraction form
    156,517.47/215,992.49 = 84,895.97/x
  3. Step 3: Cross multiply
    156,517.47x = 215,992.49 × 84,895.97
  4. Step 4: Simplify right side
    156,517.47x = 18,336,890,446.82
  5. Step 5: Solve for x
    x = 18,336,890,446.82/156,517.47
  6. Step 6: Final answer
    x = 117,155.55

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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.