Home / 206,116.85-309,175.28-101,140.85

Finding the Fourth Proportional to 206,116.85, 309,175.28 and 101,140.85

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Solution

The fourth proportional to 206,116.85, 309,175.28 and 101,140.85 is: 151,711.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,116.85 : 309,175.28 = 101,140.85 : x
  2. Step 2: Convert to fraction form
    206,116.85/309,175.28 = 101,140.85/x
  3. Step 3: Cross multiply
    206,116.85x = 309,175.28 × 101,140.85
  4. Step 4: Simplify right side
    206,116.85x = 31,270,250,112.48
  5. Step 5: Solve for x
    x = 31,270,250,112.48/206,116.85
  6. Step 6: Final answer
    x = 151,711.28

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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.