Home / 126,965.56-190,451.04-42,728.26

Finding the Fourth Proportional to 126,965.56, 190,451.04 and 42,728.26

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Solution

The fourth proportional to 126,965.56, 190,451.04 and 42,728.26 is: 64,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,965.56 : 190,451.04 = 42,728.26 : x
  2. Step 2: Convert to fraction form
    126,965.56/190,451.04 = 42,728.26/x
  3. Step 3: Cross multiply
    126,965.56x = 190,451.04 × 42,728.26
  4. Step 4: Simplify right side
    126,965.56x = 8,137,641,554.39
  5. Step 5: Solve for x
    x = 8,137,641,554.39/126,965.56
  6. Step 6: Final answer
    x = 64,093.30

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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.