Home / 149,733.38-206,630.65-81,749.77

Finding the Fourth Proportional to 149,733.38, 206,630.65 and 81,749.77

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Solution

The fourth proportional to 149,733.38, 206,630.65 and 81,749.77 is: 112,813.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,733.38 : 206,630.65 = 81,749.77 : x
  2. Step 2: Convert to fraction form
    149,733.38/206,630.65 = 81,749.77/x
  3. Step 3: Cross multiply
    149,733.38x = 206,630.65 × 81,749.77
  4. Step 4: Simplify right side
    149,733.38x = 16,892,008,112.45
  5. Step 5: Solve for x
    x = 16,892,008,112.45/149,733.38
  6. Step 6: Final answer
    x = 112,813.91

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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.