Home / 252,749.77-378,854.92-126,140.69

Finding the Fourth Proportional to 252,749.77, 378,854.92 and 126,140.69

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Solution

The fourth proportional to 252,749.77, 378,854.92 and 126,140.69 is: 189,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,749.77 : 378,854.92 = 126,140.69 : x
  2. Step 2: Convert to fraction form
    252,749.77/378,854.92 = 126,140.69/x
  3. Step 3: Cross multiply
    252,749.77x = 378,854.92 × 126,140.69
  4. Step 4: Simplify right side
    252,749.77x = 47,789,022,123.51
  5. Step 5: Solve for x
    x = 47,789,022,123.51/252,749.77
  6. Step 6: Final answer
    x = 189,076.42

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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.