Home / 139,236.76-192,147.38-75,574.56

Finding the Fourth Proportional to 139,236.76, 192,147.38 and 75,574.56

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Solution

The fourth proportional to 139,236.76, 192,147.38 and 75,574.56 is: 104,293.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,236.76 : 192,147.38 = 75,574.56 : x
  2. Step 2: Convert to fraction form
    139,236.76/192,147.38 = 75,574.56/x
  3. Step 3: Cross multiply
    139,236.76x = 192,147.38 × 75,574.56
  4. Step 4: Simplify right side
    139,236.76x = 14,521,453,698.65
  5. Step 5: Solve for x
    x = 14,521,453,698.65/139,236.76
  6. Step 6: Final answer
    x = 104,293.25

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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.