Home / 112,589.73-155,372.50-61,601.87

Finding the Fourth Proportional to 112,589.73, 155,372.50 and 61,601.87

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Solution

The fourth proportional to 112,589.73, 155,372.50 and 61,601.87 is: 85,009.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,589.73 : 155,372.50 = 61,601.87 : x
  2. Step 2: Convert to fraction form
    112,589.73/155,372.50 = 61,601.87/x
  3. Step 3: Cross multiply
    112,589.73x = 155,372.50 × 61,601.87
  4. Step 4: Simplify right side
    112,589.73x = 9,571,235,791.53
  5. Step 5: Solve for x
    x = 9,571,235,791.53/112,589.73
  6. Step 6: Final answer
    x = 85,009.85

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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.