Home / 112,145.82-154,761.19-61,844.82

Finding the Fourth Proportional to 112,145.82, 154,761.19 and 61,844.82

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Solution

The fourth proportional to 112,145.82, 154,761.19 and 61,844.82 is: 85,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,145.82 : 154,761.19 = 61,844.82 : x
  2. Step 2: Convert to fraction form
    112,145.82/154,761.19 = 61,844.82/x
  3. Step 3: Cross multiply
    112,145.82x = 154,761.19 × 61,844.82
  4. Step 4: Simplify right side
    112,145.82x = 9,571,177,938.54
  5. Step 5: Solve for x
    x = 9,571,177,938.54/112,145.82
  6. Step 6: Final answer
    x = 85,345.83

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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.