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Finding the Fourth Proportional to 82,893.80, 124,194.90 and 68,022.20

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Solution

The fourth proportional to 82,893.80, 124,194.90 and 68,022.20 is: 101,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,893.80 : 124,194.90 = 68,022.20 : x
  2. Step 2: Convert to fraction form
    82,893.80/124,194.90 = 68,022.20/x
  3. Step 3: Cross multiply
    82,893.80x = 124,194.90 × 68,022.20
  4. Step 4: Simplify right side
    82,893.80x = 8,448,010,326.78
  5. Step 5: Solve for x
    x = 8,448,010,326.78/82,893.80
  6. Step 6: Final answer
    x = 101,913.66

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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.