Home / 148,768.20-205,231.30-88,304.40

Finding the Fourth Proportional to 148,768.20, 205,231.30 and 88,304.40

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Solution

The fourth proportional to 148,768.20, 205,231.30 and 88,304.40 is: 121,819.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,768.20 : 205,231.30 = 88,304.40 : x
  2. Step 2: Convert to fraction form
    148,768.20/205,231.30 = 88,304.40/x
  3. Step 3: Cross multiply
    148,768.20x = 205,231.30 × 88,304.40
  4. Step 4: Simplify right side
    148,768.20x = 18,122,826,807.72
  5. Step 5: Solve for x
    x = 18,122,826,807.72/148,768.20
  6. Step 6: Final answer
    x = 121,819.22

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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.