Home / 139,767.03-192,871.94-76,104.63

Finding the Fourth Proportional to 139,767.03, 192,871.94 and 76,104.63

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Solution

The fourth proportional to 139,767.03, 192,871.94 and 76,104.63 is: 105,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,767.03 : 192,871.94 = 76,104.63 : x
  2. Step 2: Convert to fraction form
    139,767.03/192,871.94 = 76,104.63/x
  3. Step 3: Cross multiply
    139,767.03x = 192,871.94 × 76,104.63
  4. Step 4: Simplify right side
    139,767.03x = 14,678,447,250.56
  5. Step 5: Solve for x
    x = 14,678,447,250.56/139,767.03
  6. Step 6: Final answer
    x = 105,020.81

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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.