Home / 118,320.30-163,286.13-67,340.72

Finding the Fourth Proportional to 118,320.30, 163,286.13 and 67,340.72

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Solution

The fourth proportional to 118,320.30, 163,286.13 and 67,340.72 is: 92,932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,320.30 : 163,286.13 = 67,340.72 : x
  2. Step 2: Convert to fraction form
    118,320.30/163,286.13 = 67,340.72/x
  3. Step 3: Cross multiply
    118,320.30x = 163,286.13 × 67,340.72
  4. Step 4: Simplify right side
    118,320.30x = 10,995,804,743.78
  5. Step 5: Solve for x
    x = 10,995,804,743.78/118,320.30
  6. Step 6: Final answer
    x = 92,932.53

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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.