Home / 140,664.70-194,139.90-80,255.06

Finding the Fourth Proportional to 140,664.70, 194,139.90 and 80,255.06

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Solution

The fourth proportional to 140,664.70, 194,139.90 and 80,255.06 is: 110,764.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,664.70 : 194,139.90 = 80,255.06 : x
  2. Step 2: Convert to fraction form
    140,664.70/194,139.90 = 80,255.06/x
  3. Step 3: Cross multiply
    140,664.70x = 194,139.90 × 80,255.06
  4. Step 4: Simplify right side
    140,664.70x = 15,580,709,322.89
  5. Step 5: Solve for x
    x = 15,580,709,322.89/140,664.70
  6. Step 6: Final answer
    x = 110,764.89

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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.