Home / 112,675.23-155,491.86-61,691.27

Finding the Fourth Proportional to 112,675.23, 155,491.86 and 61,691.27

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Solution

The fourth proportional to 112,675.23, 155,491.86 and 61,691.27 is: 85,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,675.23 : 155,491.86 = 61,691.27 : x
  2. Step 2: Convert to fraction form
    112,675.23/155,491.86 = 61,691.27/x
  3. Step 3: Cross multiply
    112,675.23x = 155,491.86 × 61,691.27
  4. Step 4: Simplify right side
    112,675.23x = 9,592,489,540.60
  5. Step 5: Solve for x
    x = 9,592,489,540.60/112,675.23
  6. Step 6: Final answer
    x = 85,133.97

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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.