Home / 84,949.14-127,406.70-80,733.90

Finding the Fourth Proportional to 84,949.14, 127,406.70 and 80,733.90

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Solution

The fourth proportional to 84,949.14, 127,406.70 and 80,733.90 is: 121,084.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,949.14 : 127,406.70 = 80,733.90 : x
  2. Step 2: Convert to fraction form
    84,949.14/127,406.70 = 80,733.90/x
  3. Step 3: Cross multiply
    84,949.14x = 127,406.70 × 80,733.90
  4. Step 4: Simplify right side
    84,949.14x = 10,286,039,777.13
  5. Step 5: Solve for x
    x = 10,286,039,777.13/84,949.14
  6. Step 6: Final answer
    x = 121,084.68

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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.