Home / 149,010.38-205,635.40-81,027.26

Finding the Fourth Proportional to 149,010.38, 205,635.40 and 81,027.26

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Solution

The fourth proportional to 149,010.38, 205,635.40 and 81,027.26 is: 111,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,010.38 : 205,635.40 = 81,027.26 : x
  2. Step 2: Convert to fraction form
    149,010.38/205,635.40 = 81,027.26/x
  3. Step 3: Cross multiply
    149,010.38x = 205,635.40 × 81,027.26
  4. Step 4: Simplify right side
    149,010.38x = 16,662,073,021.00
  5. Step 5: Solve for x
    x = 16,662,073,021.00/149,010.38
  6. Step 6: Final answer
    x = 111,818.20

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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.