Home / 140,918-194,568.90-90,704.48

Finding the Fourth Proportional to 140,918, 194,568.90 and 90,704.48

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Solution

The fourth proportional to 140,918, 194,568.90 and 90,704.48 is: 125,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,918 : 194,568.90 = 90,704.48 : x
  2. Step 2: Convert to fraction form
    140,918/194,568.90 = 90,704.48/x
  3. Step 3: Cross multiply
    140,918x = 194,568.90 × 90,704.48
  4. Step 4: Simplify right side
    140,918x = 17,648,270,898.67
  5. Step 5: Solve for x
    x = 17,648,270,898.67/140,918
  6. Step 6: Final answer
    x = 125,237.88

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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.