Home / 149,659.45-206,531.78-89,264.43

Finding the Fourth Proportional to 149,659.45, 206,531.78 and 89,264.43

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Solution

The fourth proportional to 149,659.45, 206,531.78 and 89,264.43 is: 123,185.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,659.45 : 206,531.78 = 89,264.43 : x
  2. Step 2: Convert to fraction form
    149,659.45/206,531.78 = 89,264.43/x
  3. Step 3: Cross multiply
    149,659.45x = 206,531.78 × 89,264.43
  4. Step 4: Simplify right side
    149,659.45x = 18,435,941,172.26
  5. Step 5: Solve for x
    x = 18,435,941,172.26/149,659.45
  6. Step 6: Final answer
    x = 123,185.95

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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.