Home / 139,587.94-192,631.92-75,926.12

Finding the Fourth Proportional to 139,587.94, 192,631.92 and 75,926.12

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Solution

The fourth proportional to 139,587.94, 192,631.92 and 75,926.12 is: 104,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,587.94 : 192,631.92 = 75,926.12 : x
  2. Step 2: Convert to fraction form
    139,587.94/192,631.92 = 75,926.12/x
  3. Step 3: Cross multiply
    139,587.94x = 192,631.92 × 75,926.12
  4. Step 4: Simplify right side
    139,587.94x = 14,625,794,273.75
  5. Step 5: Solve for x
    x = 14,625,794,273.75/139,587.94
  6. Step 6: Final answer
    x = 104,778.36

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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.