Home / 139,362.85-192,379.62-94,102.12

Finding the Fourth Proportional to 139,362.85, 192,379.62 and 94,102.12

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Solution

The fourth proportional to 139,362.85, 192,379.62 and 94,102.12 is: 129,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,362.85 : 192,379.62 = 94,102.12 : x
  2. Step 2: Convert to fraction form
    139,362.85/192,379.62 = 94,102.12/x
  3. Step 3: Cross multiply
    139,362.85x = 192,379.62 × 94,102.12
  4. Step 4: Simplify right side
    139,362.85x = 18,103,330,086.79
  5. Step 5: Solve for x
    x = 18,103,330,086.79/139,362.85
  6. Step 6: Final answer
    x = 129,900.69

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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.