Home / 139,517.82-192,533.63-75,855.65

Finding the Fourth Proportional to 139,517.82, 192,533.63 and 75,855.65

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Solution

The fourth proportional to 139,517.82, 192,533.63 and 75,855.65 is: 104,680.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,517.82 : 192,533.63 = 75,855.65 : x
  2. Step 2: Convert to fraction form
    139,517.82/192,533.63 = 75,855.65/x
  3. Step 3: Cross multiply
    139,517.82x = 192,533.63 × 75,855.65
  4. Step 4: Simplify right side
    139,517.82x = 14,604,762,308.56
  5. Step 5: Solve for x
    x = 14,604,762,308.56/139,517.82
  6. Step 6: Final answer
    x = 104,680.26

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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.