Home / 149,694.39-206,573.09-89,233.88

Finding the Fourth Proportional to 149,694.39, 206,573.09 and 89,233.88

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Solution

The fourth proportional to 149,694.39, 206,573.09 and 89,233.88 is: 123,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,694.39 : 206,573.09 = 89,233.88 : x
  2. Step 2: Convert to fraction form
    149,694.39/206,573.09 = 89,233.88/x
  3. Step 3: Cross multiply
    149,694.39x = 206,573.09 × 89,233.88
  4. Step 4: Simplify right side
    149,694.39x = 18,433,316,845.25
  5. Step 5: Solve for x
    x = 18,433,316,845.25/149,694.39
  6. Step 6: Final answer
    x = 123,139.66

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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.