Home / 206,172.15-309,215.02-101,066.55

Finding the Fourth Proportional to 206,172.15, 309,215.02 and 101,066.55

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Solution

The fourth proportional to 206,172.15, 309,215.02 and 101,066.55 is: 151,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,172.15 : 309,215.02 = 101,066.55 : x
  2. Step 2: Convert to fraction form
    206,172.15/309,215.02 = 101,066.55/x
  3. Step 3: Cross multiply
    206,172.15x = 309,215.02 × 101,066.55
  4. Step 4: Simplify right side
    206,172.15x = 31,251,295,279.58
  5. Step 5: Solve for x
    x = 31,251,295,279.58/206,172.15
  6. Step 6: Final answer
    x = 151,578.65

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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.