Home / 259,862.19-389,479.37-126,542.67

Finding the Fourth Proportional to 259,862.19, 389,479.37 and 126,542.67

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Solution

The fourth proportional to 259,862.19, 389,479.37 and 126,542.67 is: 189,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,862.19 : 389,479.37 = 126,542.67 : x
  2. Step 2: Convert to fraction form
    259,862.19/389,479.37 = 126,542.67/x
  3. Step 3: Cross multiply
    259,862.19x = 389,479.37 × 126,542.67
  4. Step 4: Simplify right side
    259,862.19x = 49,285,758,757.00
  5. Step 5: Solve for x
    x = 49,285,758,757.00/259,862.19
  6. Step 6: Final answer
    x = 189,661.14

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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.