Home / 140,704.23-194,170.35-76,172.02

Finding the Fourth Proportional to 140,704.23, 194,170.35 and 76,172.02

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Solution

The fourth proportional to 140,704.23, 194,170.35 and 76,172.02 is: 105,116.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,704.23 : 194,170.35 = 76,172.02 : x
  2. Step 2: Convert to fraction form
    140,704.23/194,170.35 = 76,172.02/x
  3. Step 3: Cross multiply
    140,704.23x = 194,170.35 × 76,172.02
  4. Step 4: Simplify right side
    140,704.23x = 14,790,347,783.61
  5. Step 5: Solve for x
    x = 14,790,347,783.61/140,704.23
  6. Step 6: Final answer
    x = 105,116.58

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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.