Home / 112,321.38-154,877.14-91,839.54

Finding the Fourth Proportional to 112,321.38, 154,877.14 and 91,839.54

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Solution

The fourth proportional to 112,321.38, 154,877.14 and 91,839.54 is: 126,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,321.38 : 154,877.14 = 91,839.54 : x
  2. Step 2: Convert to fraction form
    112,321.38/154,877.14 = 91,839.54/x
  3. Step 3: Cross multiply
    112,321.38x = 154,877.14 × 91,839.54
  4. Step 4: Simplify right side
    112,321.38x = 14,223,844,060.53
  5. Step 5: Solve for x
    x = 14,223,844,060.53/112,321.38
  6. Step 6: Final answer
    x = 126,635.24

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1.5x scale

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.