Home / 165,028.20-247,542.30-105,930.60

Finding the Fourth Proportional to 165,028.20, 247,542.30 and 105,930.60

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Solution

The fourth proportional to 165,028.20, 247,542.30 and 105,930.60 is: 158,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,028.20 : 247,542.30 = 105,930.60 : x
  2. Step 2: Convert to fraction form
    165,028.20/247,542.30 = 105,930.60/x
  3. Step 3: Cross multiply
    165,028.20x = 247,542.30 × 105,930.60
  4. Step 4: Simplify right side
    165,028.20x = 26,222,304,364.38
  5. Step 5: Solve for x
    x = 26,222,304,364.38/165,028.20
  6. Step 6: Final answer
    x = 158,895.90

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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.