Home / 140,748.98-194,236.80-77,086.22

Finding the Fourth Proportional to 140,748.98, 194,236.80 and 77,086.22

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Solution

The fourth proportional to 140,748.98, 194,236.80 and 77,086.22 is: 106,380.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,748.98 : 194,236.80 = 77,086.22 : x
  2. Step 2: Convert to fraction form
    140,748.98/194,236.80 = 77,086.22/x
  3. Step 3: Cross multiply
    140,748.98x = 194,236.80 × 77,086.22
  4. Step 4: Simplify right side
    140,748.98x = 14,972,980,696.90
  5. Step 5: Solve for x
    x = 14,972,980,696.90/140,748.98
  6. Step 6: Final answer
    x = 106,380.74

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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.