Home / 149,080.24-205,734.48-81,101.03

Finding the Fourth Proportional to 149,080.24, 205,734.48 and 81,101.03

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Solution

The fourth proportional to 149,080.24, 205,734.48 and 81,101.03 is: 111,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,080.24 : 205,734.48 = 81,101.03 : x
  2. Step 2: Convert to fraction form
    149,080.24/205,734.48 = 81,101.03/x
  3. Step 3: Cross multiply
    149,080.24x = 205,734.48 × 81,101.03
  4. Step 4: Simplify right side
    149,080.24x = 16,685,278,234.51
  5. Step 5: Solve for x
    x = 16,685,278,234.51/149,080.24
  6. Step 6: Final answer
    x = 111,921.46

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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.