Home / 205,895.20-308,777.12-65,621.04

Finding the Fourth Proportional to 205,895.20, 308,777.12 and 65,621.04

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Solution

The fourth proportional to 205,895.20, 308,777.12 and 65,621.04 is: 98,410.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,895.20 : 308,777.12 = 65,621.04 : x
  2. Step 2: Convert to fraction form
    205,895.20/308,777.12 = 65,621.04/x
  3. Step 3: Cross multiply
    205,895.20x = 308,777.12 × 65,621.04
  4. Step 4: Simplify right side
    205,895.20x = 20,262,275,742.60
  5. Step 5: Solve for x
    x = 20,262,275,742.60/205,895.20
  6. Step 6: Final answer
    x = 98,410.63

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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.