Home / 149,948.52-206,928.93-81,965.76

Finding the Fourth Proportional to 149,948.52, 206,928.93 and 81,965.76

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Solution

The fourth proportional to 149,948.52, 206,928.93 and 81,965.76 is: 113,112.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,948.52 : 206,928.93 = 81,965.76 : x
  2. Step 2: Convert to fraction form
    149,948.52/206,928.93 = 81,965.76/x
  3. Step 3: Cross multiply
    149,948.52x = 206,928.93 × 81,965.76
  4. Step 4: Simplify right side
    149,948.52x = 16,961,087,013.44
  5. Step 5: Solve for x
    x = 16,961,087,013.44/149,948.52
  6. Step 6: Final answer
    x = 113,112.73

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1.5x scale

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.