Home / 84,868.29-127,380.20-84,550.77

Finding the Fourth Proportional to 84,868.29, 127,380.20 and 84,550.77

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Solution

The fourth proportional to 84,868.29, 127,380.20 and 84,550.77 is: 126,903.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,868.29 : 127,380.20 = 84,550.77 : x
  2. Step 2: Convert to fraction form
    84,868.29/127,380.20 = 84,550.77/x
  3. Step 3: Cross multiply
    84,868.29x = 127,380.20 × 84,550.77
  4. Step 4: Simplify right side
    84,868.29x = 10,770,093,570.00
  5. Step 5: Solve for x
    x = 10,770,093,570.00/84,868.29
  6. Step 6: Final answer
    x = 126,903.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.