Home / 148,768.64-205,299.98-80,785.02

Finding the Fourth Proportional to 148,768.64, 205,299.98 and 80,785.02

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Solution

The fourth proportional to 148,768.64, 205,299.98 and 80,785.02 is: 111,482.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,768.64 : 205,299.98 = 80,785.02 : x
  2. Step 2: Convert to fraction form
    148,768.64/205,299.98 = 80,785.02/x
  3. Step 3: Cross multiply
    148,768.64x = 205,299.98 × 80,785.02
  4. Step 4: Simplify right side
    148,768.64x = 16,585,162,990.30
  5. Step 5: Solve for x
    x = 16,585,162,990.30/148,768.64
  6. Step 6: Final answer
    x = 111,482.92

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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.