Home / 149,378.82-206,152.96-91,260.42

Finding the Fourth Proportional to 149,378.82, 206,152.96 and 91,260.42

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Solution

The fourth proportional to 149,378.82, 206,152.96 and 91,260.42 is: 125,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,378.82 : 206,152.96 = 91,260.42 : x
  2. Step 2: Convert to fraction form
    149,378.82/206,152.96 = 91,260.42/x
  3. Step 3: Cross multiply
    149,378.82x = 206,152.96 × 91,260.42
  4. Step 4: Simplify right side
    149,378.82x = 18,813,605,713.84
  5. Step 5: Solve for x
    x = 18,813,605,713.84/149,378.82
  6. Step 6: Final answer
    x = 125,945.60

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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.