Home / 125,943.82-188,909.43-31,173.46

Finding the Fourth Proportional to 125,943.82, 188,909.43 and 31,173.46

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Solution

The fourth proportional to 125,943.82, 188,909.43 and 31,173.46 is: 46,758.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,943.82 : 188,909.43 = 31,173.46 : x
  2. Step 2: Convert to fraction form
    125,943.82/188,909.43 = 31,173.46/x
  3. Step 3: Cross multiply
    125,943.82x = 188,909.43 × 31,173.46
  4. Step 4: Simplify right side
    125,943.82x = 5,888,960,559.73
  5. Step 5: Solve for x
    x = 5,888,960,559.73/125,943.82
  6. Step 6: Final answer
    x = 46,758.63

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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.