Home / 148,757.46-205,286.76-80,775.06

Finding the Fourth Proportional to 148,757.46, 205,286.76 and 80,775.06

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Solution

The fourth proportional to 148,757.46, 205,286.76 and 80,775.06 is: 111,470.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,757.46 : 205,286.76 = 80,775.06 : x
  2. Step 2: Convert to fraction form
    148,757.46/205,286.76 = 80,775.06/x
  3. Step 3: Cross multiply
    148,757.46x = 205,286.76 × 80,775.06
  4. Step 4: Simplify right side
    148,757.46x = 16,582,050,356.21
  5. Step 5: Solve for x
    x = 16,582,050,356.21/148,757.46
  6. Step 6: Final answer
    x = 111,470.38

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1.5x scale

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.