Home / 148,805.32-205,352.85-80,822.95

Finding the Fourth Proportional to 148,805.32, 205,352.85 and 80,822.95

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Solution

The fourth proportional to 148,805.32, 205,352.85 and 80,822.95 is: 111,536.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,805.32 : 205,352.85 = 80,822.95 : x
  2. Step 2: Convert to fraction form
    148,805.32/205,352.85 = 80,822.95/x
  3. Step 3: Cross multiply
    148,805.32x = 205,352.85 × 80,822.95
  4. Step 4: Simplify right side
    148,805.32x = 16,597,223,127.91
  5. Step 5: Solve for x
    x = 16,597,223,127.91/148,805.32
  6. Step 6: Final answer
    x = 111,536.49

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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.