Home / 83,302.12-124,662.49-68,133.91

Finding the Fourth Proportional to 83,302.12, 124,662.49 and 68,133.91

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Solution

The fourth proportional to 83,302.12, 124,662.49 and 68,133.91 is: 101,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,302.12 : 124,662.49 = 68,133.91 : x
  2. Step 2: Convert to fraction form
    83,302.12/124,662.49 = 68,133.91/x
  3. Step 3: Cross multiply
    83,302.12x = 124,662.49 × 68,133.91
  4. Step 4: Simplify right side
    83,302.12x = 8,493,743,009.04
  5. Step 5: Solve for x
    x = 8,493,743,009.04/83,302.12
  6. Step 6: Final answer
    x = 101,963.11

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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.