Home / 126,207.45-189,310.50-31,437.18

Finding the Fourth Proportional to 126,207.45, 189,310.50 and 31,437.18

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Solution

The fourth proportional to 126,207.45, 189,310.50 and 31,437.18 is: 47,155.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,207.45 : 189,310.50 = 31,437.18 : x
  2. Step 2: Convert to fraction form
    126,207.45/189,310.50 = 31,437.18/x
  3. Step 3: Cross multiply
    126,207.45x = 189,310.50 × 31,437.18
  4. Step 4: Simplify right side
    126,207.45x = 5,951,388,264.39
  5. Step 5: Solve for x
    x = 5,951,388,264.39/126,207.45
  6. Step 6: Final answer
    x = 47,155.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.