Home / 140,649.42-194,096.40-76,991.24

Finding the Fourth Proportional to 140,649.42, 194,096.40 and 76,991.24

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Solution

The fourth proportional to 140,649.42, 194,096.40 and 76,991.24 is: 106,248.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,649.42 : 194,096.40 = 76,991.24 : x
  2. Step 2: Convert to fraction form
    140,649.42/194,096.40 = 76,991.24/x
  3. Step 3: Cross multiply
    140,649.42x = 194,096.40 × 76,991.24
  4. Step 4: Simplify right side
    140,649.42x = 14,943,722,515.54
  5. Step 5: Solve for x
    x = 14,943,722,515.54/140,649.42
  6. Step 6: Final answer
    x = 106,248.02

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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.