Home / 149,539.97-206,364.31-81,555.66

Finding the Fourth Proportional to 149,539.97, 206,364.31 and 81,555.66

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Solution

The fourth proportional to 149,539.97, 206,364.31 and 81,555.66 is: 112,546.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,539.97 : 206,364.31 = 81,555.66 : x
  2. Step 2: Convert to fraction form
    149,539.97/206,364.31 = 81,555.66/x
  3. Step 3: Cross multiply
    149,539.97x = 206,364.31 × 81,555.66
  4. Step 4: Simplify right side
    149,539.97x = 16,830,177,298.61
  5. Step 5: Solve for x
    x = 16,830,177,298.61/149,539.97
  6. Step 6: Final answer
    x = 112,546.34

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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.