Home / 165,711.88-248,542.17-90,868.96

Finding the Fourth Proportional to 165,711.88, 248,542.17 and 90,868.96

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Solution

The fourth proportional to 165,711.88, 248,542.17 and 90,868.96 is: 136,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,711.88 : 248,542.17 = 90,868.96 : x
  2. Step 2: Convert to fraction form
    165,711.88/248,542.17 = 90,868.96/x
  3. Step 3: Cross multiply
    165,711.88x = 248,542.17 × 90,868.96
  4. Step 4: Simplify right side
    165,711.88x = 22,584,768,504.04
  5. Step 5: Solve for x
    x = 22,584,768,504.04/165,711.88
  6. Step 6: Final answer
    x = 136,289.37

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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.