Home / 148,889.12-205,383.78-91,488.56

Finding the Fourth Proportional to 148,889.12, 205,383.78 and 91,488.56

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Solution

The fourth proportional to 148,889.12, 205,383.78 and 91,488.56 is: 126,203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,889.12 : 205,383.78 = 91,488.56 : x
  2. Step 2: Convert to fraction form
    148,889.12/205,383.78 = 91,488.56/x
  3. Step 3: Cross multiply
    148,889.12x = 205,383.78 × 91,488.56
  4. Step 4: Simplify right side
    148,889.12x = 18,790,265,252.64
  5. Step 5: Solve for x
    x = 18,790,265,252.64/148,889.12
  6. Step 6: Final answer
    x = 126,203.08

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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.