Home / 83,895.40-125,843.10-80,669.80

Finding the Fourth Proportional to 83,895.40, 125,843.10 and 80,669.80

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Solution

The fourth proportional to 83,895.40, 125,843.10 and 80,669.80 is: 121,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,895.40 : 125,843.10 = 80,669.80 : x
  2. Step 2: Convert to fraction form
    83,895.40/125,843.10 = 80,669.80/x
  3. Step 3: Cross multiply
    83,895.40x = 125,843.10 × 80,669.80
  4. Step 4: Simplify right side
    83,895.40x = 10,151,737,708.38
  5. Step 5: Solve for x
    x = 10,151,737,708.38/83,895.40
  6. Step 6: Final answer
    x = 121,004.70

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1.5x scale

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.