Home / 149,207.77-205,906.13-81,228.52

Finding the Fourth Proportional to 149,207.77, 205,906.13 and 81,228.52

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Solution

The fourth proportional to 149,207.77, 205,906.13 and 81,228.52 is: 112,095.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,207.77 : 205,906.13 = 81,228.52 : x
  2. Step 2: Convert to fraction form
    149,207.77/205,906.13 = 81,228.52/x
  3. Step 3: Cross multiply
    149,207.77x = 205,906.13 × 81,228.52
  4. Step 4: Simplify right side
    149,207.77x = 16,725,449,169.30
  5. Step 5: Solve for x
    x = 16,725,449,169.30/149,207.77
  6. Step 6: Final answer
    x = 112,095.03

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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.