Home / 206,627.12-309,904.38-56,831.29

Finding the Fourth Proportional to 206,627.12, 309,904.38 and 56,831.29

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Solution

The fourth proportional to 206,627.12, 309,904.38 and 56,831.29 is: 85,236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,627.12 : 309,904.38 = 56,831.29 : x
  2. Step 2: Convert to fraction form
    206,627.12/309,904.38 = 56,831.29/x
  3. Step 3: Cross multiply
    206,627.12x = 309,904.38 × 56,831.29
  4. Step 4: Simplify right side
    206,627.12x = 17,612,265,692.05
  5. Step 5: Solve for x
    x = 17,612,265,692.05/206,627.12
  6. Step 6: Final answer
    x = 85,236.95

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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.