Home / 140,636.06-194,070.31-76,961.55

Finding the Fourth Proportional to 140,636.06, 194,070.31 and 76,961.55

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Solution

The fourth proportional to 140,636.06, 194,070.31 and 76,961.55 is: 106,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,636.06 : 194,070.31 = 76,961.55 : x
  2. Step 2: Convert to fraction form
    140,636.06/194,070.31 = 76,961.55/x
  3. Step 3: Cross multiply
    140,636.06x = 194,070.31 × 76,961.55
  4. Step 4: Simplify right side
    140,636.06x = 14,935,951,674.18
  5. Step 5: Solve for x
    x = 14,935,951,674.18/140,636.06
  6. Step 6: Final answer
    x = 106,202.86

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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.