Home / 112,687.56-155,508.30-61,004.52

Finding the Fourth Proportional to 112,687.56, 155,508.30 and 61,004.52

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Solution

The fourth proportional to 112,687.56, 155,508.30 and 61,004.52 is: 84,185.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,687.56 : 155,508.30 = 61,004.52 : x
  2. Step 2: Convert to fraction form
    112,687.56/155,508.30 = 61,004.52/x
  3. Step 3: Cross multiply
    112,687.56x = 155,508.30 × 61,004.52
  4. Step 4: Simplify right side
    112,687.56x = 9,486,709,197.52
  5. Step 5: Solve for x
    x = 9,486,709,197.52/112,687.56
  6. Step 6: Final answer
    x = 84,185.95

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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.