Home / 149,003.53-205,625.10-81,020.44

Finding the Fourth Proportional to 149,003.53, 205,625.10 and 81,020.44

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Solution

The fourth proportional to 149,003.53, 205,625.10 and 81,020.44 is: 111,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,003.53 : 205,625.10 = 81,020.44 : x
  2. Step 2: Convert to fraction form
    149,003.53/205,625.10 = 81,020.44/x
  3. Step 3: Cross multiply
    149,003.53x = 205,625.10 × 81,020.44
  4. Step 4: Simplify right side
    149,003.53x = 16,659,836,637.90
  5. Step 5: Solve for x
    x = 16,659,836,637.90/149,003.53
  6. Step 6: Final answer
    x = 111,808.34

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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.