Home / 149,945.80-206,891.10-89,536

Finding the Fourth Proportional to 149,945.80, 206,891.10 and 89,536

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Solution

The fourth proportional to 149,945.80, 206,891.10 and 89,536 is: 123,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,945.80 : 206,891.10 = 89,536 : x
  2. Step 2: Convert to fraction form
    149,945.80/206,891.10 = 89,536/x
  3. Step 3: Cross multiply
    149,945.80x = 206,891.10 × 89,536
  4. Step 4: Simplify right side
    149,945.80x = 18,524,201,529.60
  5. Step 5: Solve for x
    x = 18,524,201,529.60/149,945.80
  6. Step 6: Final answer
    x = 123,539.32

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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.