Home / 126,732.20-189,968.70-74,114.60

Finding the Fourth Proportional to 126,732.20, 189,968.70 and 74,114.60

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Solution

The fourth proportional to 126,732.20, 189,968.70 and 74,114.60 is: 111,096.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,732.20 : 189,968.70 = 74,114.60 : x
  2. Step 2: Convert to fraction form
    126,732.20/189,968.70 = 74,114.60/x
  3. Step 3: Cross multiply
    126,732.20x = 189,968.70 × 74,114.60
  4. Step 4: Simplify right side
    126,732.20x = 14,079,454,213.02
  5. Step 5: Solve for x
    x = 14,079,454,213.02/126,732.20
  6. Step 6: Final answer
    x = 111,096.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.