Home / 143,680.52-198,279.04-83,286.16

Finding the Fourth Proportional to 143,680.52, 198,279.04 and 83,286.16

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Solution

The fourth proportional to 143,680.52, 198,279.04 and 83,286.16 is: 114,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,680.52 : 198,279.04 = 83,286.16 : x
  2. Step 2: Convert to fraction form
    143,680.52/198,279.04 = 83,286.16/x
  3. Step 3: Cross multiply
    143,680.52x = 198,279.04 × 83,286.16
  4. Step 4: Simplify right side
    143,680.52x = 16,513,899,302.34
  5. Step 5: Solve for x
    x = 16,513,899,302.34/143,680.52
  6. Step 6: Final answer
    x = 114,934.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.