Home / 139,718.22-192,806.24-76,054.65

Finding the Fourth Proportional to 139,718.22, 192,806.24 and 76,054.65

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Solution

The fourth proportional to 139,718.22, 192,806.24 and 76,054.65 is: 104,952.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,718.22 : 192,806.24 = 76,054.65 : x
  2. Step 2: Convert to fraction form
    139,718.22/192,806.24 = 76,054.65/x
  3. Step 3: Cross multiply
    139,718.22x = 192,806.24 × 76,054.65
  4. Step 4: Simplify right side
    139,718.22x = 14,663,810,720.74
  5. Step 5: Solve for x
    x = 14,663,810,720.74/139,718.22
  6. Step 6: Final answer
    x = 104,952.75

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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.