Home / 189,282.39-261,209.17-108,715.12

Finding the Fourth Proportional to 189,282.39, 261,209.17 and 108,715.12

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Solution

The fourth proportional to 189,282.39, 261,209.17 and 108,715.12 is: 150,026.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,282.39 : 261,209.17 = 108,715.12 : x
  2. Step 2: Convert to fraction form
    189,282.39/261,209.17 = 108,715.12/x
  3. Step 3: Cross multiply
    189,282.39x = 261,209.17 × 108,715.12
  4. Step 4: Simplify right side
    189,282.39x = 28,397,386,261.65
  5. Step 5: Solve for x
    x = 28,397,386,261.65/189,282.39
  6. Step 6: Final answer
    x = 150,026.56

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1.5x scale

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.