Home / 149,930.20-206,911.38-86,277.52

Finding the Fourth Proportional to 149,930.20, 206,911.38 and 86,277.52

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Solution

The fourth proportional to 149,930.20, 206,911.38 and 86,277.52 is: 119,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,930.20 : 206,911.38 = 86,277.52 : x
  2. Step 2: Convert to fraction form
    149,930.20/206,911.38 = 86,277.52/x
  3. Step 3: Cross multiply
    149,930.20x = 206,911.38 × 86,277.52
  4. Step 4: Simplify right side
    149,930.20x = 17,851,800,726.18
  5. Step 5: Solve for x
    x = 17,851,800,726.18/149,930.20
  6. Step 6: Final answer
    x = 119,067.41

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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.