Home / 126,453.20-189,675.33-31,684.19

Finding the Fourth Proportional to 126,453.20, 189,675.33 and 31,684.19

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Solution

The fourth proportional to 126,453.20, 189,675.33 and 31,684.19 is: 47,525.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,453.20 : 189,675.33 = 31,684.19 : x
  2. Step 2: Convert to fraction form
    126,453.20/189,675.33 = 31,684.19/x
  3. Step 3: Cross multiply
    126,453.20x = 189,675.33 × 31,684.19
  4. Step 4: Simplify right side
    126,453.20x = 6,009,708,245.66
  5. Step 5: Solve for x
    x = 6,009,708,245.66/126,453.20
  6. Step 6: Final answer
    x = 47,525.16

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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.