Home / 84,843.15-126,342.09-83,911.29

Finding the Fourth Proportional to 84,843.15, 126,342.09 and 83,911.29

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Solution

The fourth proportional to 84,843.15, 126,342.09 and 83,911.29 is: 124,954.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,843.15 : 126,342.09 = 83,911.29 : x
  2. Step 2: Convert to fraction form
    84,843.15/126,342.09 = 83,911.29/x
  3. Step 3: Cross multiply
    84,843.15x = 126,342.09 × 83,911.29
  4. Step 4: Simplify right side
    84,843.15x = 10,601,527,753.20
  5. Step 5: Solve for x
    x = 10,601,527,753.20/84,843.15
  6. Step 6: Final answer
    x = 124,954.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.