Home / 126,848.20-190,134.96-82,506.64

Finding the Fourth Proportional to 126,848.20, 190,134.96 and 82,506.64

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Solution

The fourth proportional to 126,848.20, 190,134.96 and 82,506.64 is: 123,670.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,848.20 : 190,134.96 = 82,506.64 : x
  2. Step 2: Convert to fraction form
    126,848.20/190,134.96 = 82,506.64/x
  3. Step 3: Cross multiply
    126,848.20x = 190,134.96 × 82,506.64
  4. Step 4: Simplify right side
    126,848.20x = 15,687,396,696.13
  5. Step 5: Solve for x
    x = 15,687,396,696.13/126,848.20
  6. Step 6: Final answer
    x = 123,670.63

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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.