Home / 111,761.24-154,104.54-81,493.16

Finding the Fourth Proportional to 111,761.24, 154,104.54 and 81,493.16

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Solution

The fourth proportional to 111,761.24, 154,104.54 and 81,493.16 is: 112,368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,761.24 : 154,104.54 = 81,493.16 : x
  2. Step 2: Convert to fraction form
    111,761.24/154,104.54 = 81,493.16/x
  3. Step 3: Cross multiply
    111,761.24x = 154,104.54 × 81,493.16
  4. Step 4: Simplify right side
    111,761.24x = 12,558,465,934.95
  5. Step 5: Solve for x
    x = 12,558,465,934.95/111,761.24
  6. Step 6: Final answer
    x = 112,368.71

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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.