Home / 189,269.15-261,207.13-108,712.22

Finding the Fourth Proportional to 189,269.15, 261,207.13 and 108,712.22

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Solution

The fourth proportional to 189,269.15, 261,207.13 and 108,712.22 is: 150,031.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,269.15 : 261,207.13 = 108,712.22 : x
  2. Step 2: Convert to fraction form
    189,269.15/261,207.13 = 108,712.22/x
  3. Step 3: Cross multiply
    189,269.15x = 261,207.13 × 108,712.22
  4. Step 4: Simplify right side
    189,269.15x = 28,396,406,982.13
  5. Step 5: Solve for x
    x = 28,396,406,982.13/189,269.15
  6. Step 6: Final answer
    x = 150,031.88

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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.