Home / 123,908.12-185,955.66-57,394.92

Finding the Fourth Proportional to 123,908.12, 185,955.66 and 57,394.92

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Solution

The fourth proportional to 123,908.12, 185,955.66 and 57,394.92 is: 86,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,908.12 : 185,955.66 = 57,394.92 : x
  2. Step 2: Convert to fraction form
    123,908.12/185,955.66 = 57,394.92/x
  3. Step 3: Cross multiply
    123,908.12x = 185,955.66 × 57,394.92
  4. Step 4: Simplify right side
    123,908.12x = 10,672,910,229.25
  5. Step 5: Solve for x
    x = 10,672,910,229.25/123,908.12
  6. Step 6: Final answer
    x = 86,135.68

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1.5x scale

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.