Home / 118,414.38-163,544.28-91,878.78

Finding the Fourth Proportional to 118,414.38, 163,544.28 and 91,878.78

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Solution

The fourth proportional to 118,414.38, 163,544.28 and 91,878.78 is: 126,895.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,414.38 : 163,544.28 = 91,878.78 : x
  2. Step 2: Convert to fraction form
    118,414.38/163,544.28 = 91,878.78/x
  3. Step 3: Cross multiply
    118,414.38x = 163,544.28 × 91,878.78
  4. Step 4: Simplify right side
    118,414.38x = 15,026,248,922.38
  5. Step 5: Solve for x
    x = 15,026,248,922.38/118,414.38
  6. Step 6: Final answer
    x = 126,895.47

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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.