Home / 149,520.63-206,343.44-81,541.32

Finding the Fourth Proportional to 149,520.63, 206,343.44 and 81,541.32

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Solution

The fourth proportional to 149,520.63, 206,343.44 and 81,541.32 is: 112,529.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,520.63 : 206,343.44 = 81,541.32 : x
  2. Step 2: Convert to fraction form
    149,520.63/206,343.44 = 81,541.32/x
  3. Step 3: Cross multiply
    149,520.63x = 206,343.44 × 81,541.32
  4. Step 4: Simplify right side
    149,520.63x = 16,825,516,470.94
  5. Step 5: Solve for x
    x = 16,825,516,470.94/149,520.63
  6. Step 6: Final answer
    x = 112,529.73

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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.