Home / 139,747.38-192,850.88-76,085.16

Finding the Fourth Proportional to 139,747.38, 192,850.88 and 76,085.16

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Solution

The fourth proportional to 139,747.38, 192,850.88 and 76,085.16 is: 104,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,747.38 : 192,850.88 = 76,085.16 : x
  2. Step 2: Convert to fraction form
    139,747.38/192,850.88 = 76,085.16/x
  3. Step 3: Cross multiply
    139,747.38x = 192,850.88 × 76,085.16
  4. Step 4: Simplify right side
    139,747.38x = 14,673,090,060.94
  5. Step 5: Solve for x
    x = 14,673,090,060.94/139,747.38
  6. Step 6: Final answer
    x = 104,997.25

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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.