Home / 112,834.44-155,691.06-72,538.96

Finding the Fourth Proportional to 112,834.44, 155,691.06 and 72,538.96

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Solution

The fourth proportional to 112,834.44, 155,691.06 and 72,538.96 is: 100,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,834.44 : 155,691.06 = 72,538.96 : x
  2. Step 2: Convert to fraction form
    112,834.44/155,691.06 = 72,538.96/x
  3. Step 3: Cross multiply
    112,834.44x = 155,691.06 × 72,538.96
  4. Step 4: Simplify right side
    112,834.44x = 11,293,667,573.70
  5. Step 5: Solve for x
    x = 11,293,667,573.70/112,834.44
  6. Step 6: Final answer
    x = 100,090.61

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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.