Home / 140,612.22-193,842.88-100,255.99

Finding the Fourth Proportional to 140,612.22, 193,842.88 and 100,255.99

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Solution

The fourth proportional to 140,612.22, 193,842.88 and 100,255.99 is: 138,209.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,612.22 : 193,842.88 = 100,255.99 : x
  2. Step 2: Convert to fraction form
    140,612.22/193,842.88 = 100,255.99/x
  3. Step 3: Cross multiply
    140,612.22x = 193,842.88 × 100,255.99
  4. Step 4: Simplify right side
    140,612.22x = 19,433,909,838.85
  5. Step 5: Solve for x
    x = 19,433,909,838.85/140,612.22
  6. Step 6: Final answer
    x = 138,209.25

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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.