Home / 84,943.14-127,397.70-80,727.90

Finding the Fourth Proportional to 84,943.14, 127,397.70 and 80,727.90

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Solution

The fourth proportional to 84,943.14, 127,397.70 and 80,727.90 is: 121,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,943.14 : 127,397.70 = 80,727.90 : x
  2. Step 2: Convert to fraction form
    84,943.14/127,397.70 = 80,727.90/x
  3. Step 3: Cross multiply
    84,943.14x = 127,397.70 × 80,727.90
  4. Step 4: Simplify right side
    84,943.14x = 10,284,548,785.83
  5. Step 5: Solve for x
    x = 10,284,548,785.83/84,943.14
  6. Step 6: Final answer
    x = 121,075.68

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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.