Home / 139,530.82-192,551.58-75,868.66

Finding the Fourth Proportional to 139,530.82, 192,551.58 and 75,868.66

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Solution

The fourth proportional to 139,530.82, 192,551.58 and 75,868.66 is: 104,698.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,530.82 : 192,551.58 = 75,868.66 : x
  2. Step 2: Convert to fraction form
    139,530.82/192,551.58 = 75,868.66/x
  3. Step 3: Cross multiply
    139,530.82x = 192,551.58 × 75,868.66
  4. Step 4: Simplify right side
    139,530.82x = 14,608,630,355.48
  5. Step 5: Solve for x
    x = 14,608,630,355.48/139,530.82
  6. Step 6: Final answer
    x = 104,698.23

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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.