Home / 141,388.21-195,119.49-76,861.81

Finding the Fourth Proportional to 141,388.21, 195,119.49 and 76,861.81

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Solution

The fourth proportional to 141,388.21, 195,119.49 and 76,861.81 is: 106,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,388.21 : 195,119.49 = 76,861.81 : x
  2. Step 2: Convert to fraction form
    141,388.21/195,119.49 = 76,861.81/x
  3. Step 3: Cross multiply
    141,388.21x = 195,119.49 × 76,861.81
  4. Step 4: Simplify right side
    141,388.21x = 14,997,237,167.68
  5. Step 5: Solve for x
    x = 14,997,237,167.68/141,388.21
  6. Step 6: Final answer
    x = 106,071.34

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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.