Home / 149,277.87-206,003.64-81,294.96

Finding the Fourth Proportional to 149,277.87, 206,003.64 and 81,294.96

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Solution

The fourth proportional to 149,277.87, 206,003.64 and 81,294.96 is: 112,187.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,277.87 : 206,003.64 = 81,294.96 : x
  2. Step 2: Convert to fraction form
    149,277.87/206,003.64 = 81,294.96/x
  3. Step 3: Cross multiply
    149,277.87x = 206,003.64 × 81,294.96
  4. Step 4: Simplify right side
    149,277.87x = 16,747,057,673.65
  5. Step 5: Solve for x
    x = 16,747,057,673.65/149,277.87
  6. Step 6: Final answer
    x = 112,187.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.