Home / 115,967.73-158,836.35-109,158.87

Finding the Fourth Proportional to 115,967.73, 158,836.35 and 109,158.87

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Solution

The fourth proportional to 115,967.73, 158,836.35 and 109,158.87 is: 149,510.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,967.73 : 158,836.35 = 109,158.87 : x
  2. Step 2: Convert to fraction form
    115,967.73/158,836.35 = 109,158.87/x
  3. Step 3: Cross multiply
    115,967.73x = 158,836.35 × 109,158.87
  4. Step 4: Simplify right side
    115,967.73x = 17,338,396,480.92
  5. Step 5: Solve for x
    x = 17,338,396,480.92/115,967.73
  6. Step 6: Final answer
    x = 149,510.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.