Home / 139,257.78-192,175.98-75,595.62

Finding the Fourth Proportional to 139,257.78, 192,175.98 and 75,595.62

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Solution

The fourth proportional to 139,257.78, 192,175.98 and 75,595.62 is: 104,322.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,257.78 : 192,175.98 = 75,595.62 : x
  2. Step 2: Convert to fraction form
    139,257.78/192,175.98 = 75,595.62/x
  3. Step 3: Cross multiply
    139,257.78x = 192,175.98 × 75,595.62
  4. Step 4: Simplify right side
    139,257.78x = 14,527,662,357.21
  5. Step 5: Solve for x
    x = 14,527,662,357.21/139,257.78
  6. Step 6: Final answer
    x = 104,322.09

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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.