Home / 189,521.33-261,539.37-108,964.61

Finding the Fourth Proportional to 189,521.33, 261,539.37 and 108,964.61

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Solution

The fourth proportional to 189,521.33, 261,539.37 and 108,964.61 is: 150,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,521.33 : 261,539.37 = 108,964.61 : x
  2. Step 2: Convert to fraction form
    189,521.33/261,539.37 = 108,964.61/x
  3. Step 3: Cross multiply
    189,521.33x = 261,539.37 × 108,964.61
  4. Step 4: Simplify right side
    189,521.33x = 28,498,535,451.70
  5. Step 5: Solve for x
    x = 28,498,535,451.70/189,521.33
  6. Step 6: Final answer
    x = 150,371.12

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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.