Home / 125,255.66-172,849.22-71,539.56

Finding the Fourth Proportional to 125,255.66, 172,849.22 and 71,539.56

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Solution

The fourth proportional to 125,255.66, 172,849.22 and 71,539.56 is: 98,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,255.66 : 172,849.22 = 71,539.56 : x
  2. Step 2: Convert to fraction form
    125,255.66/172,849.22 = 71,539.56/x
  3. Step 3: Cross multiply
    125,255.66x = 172,849.22 × 71,539.56
  4. Step 4: Simplify right side
    125,255.66x = 12,365,556,787.45
  5. Step 5: Solve for x
    x = 12,365,556,787.45/125,255.66
  6. Step 6: Final answer
    x = 98,722.54

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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.