Home / 148,758.04-205,286.43-80,775.01

Finding the Fourth Proportional to 148,758.04, 205,286.43 and 80,775.01

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Solution

The fourth proportional to 148,758.04, 205,286.43 and 80,775.01 is: 111,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,758.04 : 205,286.43 = 80,775.01 : x
  2. Step 2: Convert to fraction form
    148,758.04/205,286.43 = 80,775.01/x
  3. Step 3: Cross multiply
    148,758.04x = 205,286.43 × 80,775.01
  4. Step 4: Simplify right side
    148,758.04x = 16,582,013,436.11
  5. Step 5: Solve for x
    x = 16,582,013,436.11/148,758.04
  6. Step 6: Final answer
    x = 111,469.70

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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.