Home / 204,880.66-307,247.16-86,561.22

Finding the Fourth Proportional to 204,880.66, 307,247.16 and 86,561.22

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Solution

The fourth proportional to 204,880.66, 307,247.16 and 86,561.22 is: 129,810.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,880.66 : 307,247.16 = 86,561.22 : x
  2. Step 2: Convert to fraction form
    204,880.66/307,247.16 = 86,561.22/x
  3. Step 3: Cross multiply
    204,880.66x = 307,247.16 × 86,561.22
  4. Step 4: Simplify right side
    204,880.66x = 26,595,690,487.92
  5. Step 5: Solve for x
    x = 26,595,690,487.92/204,880.66
  6. Step 6: Final answer
    x = 129,810.65

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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.