Home / 140,556.90-193,966.92-76,893.96

Finding the Fourth Proportional to 140,556.90, 193,966.92 and 76,893.96

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Solution

The fourth proportional to 140,556.90, 193,966.92 and 76,893.96 is: 106,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,556.90 : 193,966.92 = 76,893.96 : x
  2. Step 2: Convert to fraction form
    140,556.90/193,966.92 = 76,893.96/x
  3. Step 3: Cross multiply
    140,556.90x = 193,966.92 × 76,893.96
  4. Step 4: Simplify right side
    140,556.90x = 14,914,884,587.80
  5. Step 5: Solve for x
    x = 14,914,884,587.80/140,556.90
  6. Step 6: Final answer
    x = 106,112.79

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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.