Home / 149,520.89-206,343.78-81,541.57

Finding the Fourth Proportional to 149,520.89, 206,343.78 and 81,541.57

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Solution

The fourth proportional to 149,520.89, 206,343.78 and 81,541.57 is: 112,530.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,520.89 : 206,343.78 = 81,541.57 : x
  2. Step 2: Convert to fraction form
    149,520.89/206,343.78 = 81,541.57/x
  3. Step 3: Cross multiply
    149,520.89x = 206,343.78 × 81,541.57
  4. Step 4: Simplify right side
    149,520.89x = 16,825,594,749.22
  5. Step 5: Solve for x
    x = 16,825,594,749.22/149,520.89
  6. Step 6: Final answer
    x = 112,530.06

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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.