Home / 149,378.92-206,145.06-82,309.48

Finding the Fourth Proportional to 149,378.92, 206,145.06 and 82,309.48

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Solution

The fourth proportional to 149,378.92, 206,145.06 and 82,309.48 is: 113,588.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,378.92 : 206,145.06 = 82,309.48 : x
  2. Step 2: Convert to fraction form
    149,378.92/206,145.06 = 82,309.48/x
  3. Step 3: Cross multiply
    149,378.92x = 206,145.06 × 82,309.48
  4. Step 4: Simplify right side
    149,378.92x = 16,967,692,693.17
  5. Step 5: Solve for x
    x = 16,967,692,693.17/149,378.92
  6. Step 6: Final answer
    x = 113,588.27

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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.