Home / 149,989.07-206,988.17-89,548.44

Finding the Fourth Proportional to 149,989.07, 206,988.17 and 89,548.44

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Solution

The fourth proportional to 149,989.07, 206,988.17 and 89,548.44 is: 123,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,989.07 : 206,988.17 = 89,548.44 : x
  2. Step 2: Convert to fraction form
    149,989.07/206,988.17 = 89,548.44/x
  3. Step 3: Cross multiply
    149,989.07x = 206,988.17 × 89,548.44
  4. Step 4: Simplify right side
    149,989.07x = 18,535,467,721.95
  5. Step 5: Solve for x
    x = 18,535,467,721.95/149,989.07
  6. Step 6: Final answer
    x = 123,578.79

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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.