Home / 126,177.70-189,266.55-103,627.30

Finding the Fourth Proportional to 126,177.70, 189,266.55 and 103,627.30

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Solution

The fourth proportional to 126,177.70, 189,266.55 and 103,627.30 is: 155,440.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,177.70 : 189,266.55 = 103,627.30 : x
  2. Step 2: Convert to fraction form
    126,177.70/189,266.55 = 103,627.30/x
  3. Step 3: Cross multiply
    126,177.70x = 189,266.55 × 103,627.30
  4. Step 4: Simplify right side
    126,177.70x = 19,613,181,556.82
  5. Step 5: Solve for x
    x = 19,613,181,556.82/126,177.70
  6. Step 6: Final answer
    x = 155,440.95

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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.