Home / 126,847.20-190,133.46-82,505.64

Finding the Fourth Proportional to 126,847.20, 190,133.46 and 82,505.64

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Solution

The fourth proportional to 126,847.20, 190,133.46 and 82,505.64 is: 123,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,847.20 : 190,133.46 = 82,505.64 : x
  2. Step 2: Convert to fraction form
    126,847.20/190,133.46 = 82,505.64/x
  3. Step 3: Cross multiply
    126,847.20x = 190,133.46 × 82,505.64
  4. Step 4: Simplify right side
    126,847.20x = 15,687,082,802.71
  5. Step 5: Solve for x
    x = 15,687,082,802.71/126,847.20
  6. Step 6: Final answer
    x = 123,669.13

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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.