Home / 149,901.97-206,867.43-81,921.82

Finding the Fourth Proportional to 149,901.97, 206,867.43 and 81,921.82

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Solution

The fourth proportional to 149,901.97, 206,867.43 and 81,921.82 is: 113,053.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,901.97 : 206,867.43 = 81,921.82 : x
  2. Step 2: Convert to fraction form
    149,901.97/206,867.43 = 81,921.82/x
  3. Step 3: Cross multiply
    149,901.97x = 206,867.43 × 81,921.82
  4. Step 4: Simplify right side
    149,901.97x = 16,946,956,364.32
  5. Step 5: Solve for x
    x = 16,946,956,364.32/149,901.97
  6. Step 6: Final answer
    x = 113,053.59

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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.