Home / 149,378.04-206,140.68-82,310.04

Finding the Fourth Proportional to 149,378.04, 206,140.68 and 82,310.04

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Solution

The fourth proportional to 149,378.04, 206,140.68 and 82,310.04 is: 113,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,378.04 : 206,140.68 = 82,310.04 : x
  2. Step 2: Convert to fraction form
    149,378.04/206,140.68 = 82,310.04/x
  3. Step 3: Cross multiply
    149,378.04x = 206,140.68 × 82,310.04
  4. Step 4: Simplify right side
    149,378.04x = 16,967,447,616.43
  5. Step 5: Solve for x
    x = 16,967,447,616.43/149,378.04
  6. Step 6: Final answer
    x = 113,587.30

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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.