Home / 126,120.96-174,078.72-75,849.60

Finding the Fourth Proportional to 126,120.96, 174,078.72 and 75,849.60

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Solution

The fourth proportional to 126,120.96, 174,078.72 and 75,849.60 is: 104,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,120.96 : 174,078.72 = 75,849.60 : x
  2. Step 2: Convert to fraction form
    126,120.96/174,078.72 = 75,849.60/x
  3. Step 3: Cross multiply
    126,120.96x = 174,078.72 × 75,849.60
  4. Step 4: Simplify right side
    126,120.96x = 13,203,801,280.51
  5. Step 5: Solve for x
    x = 13,203,801,280.51/126,120.96
  6. Step 6: Final answer
    x = 104,691.57

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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.