Home / 141,765.05-195,664.11-81,376.52

Finding the Fourth Proportional to 141,765.05, 195,664.11 and 81,376.52

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Solution

The fourth proportional to 141,765.05, 195,664.11 and 81,376.52 is: 112,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,765.05 : 195,664.11 = 81,376.52 : x
  2. Step 2: Convert to fraction form
    141,765.05/195,664.11 = 81,376.52/x
  3. Step 3: Cross multiply
    141,765.05x = 195,664.11 × 81,376.52
  4. Step 4: Simplify right side
    141,765.05x = 15,922,463,077.21
  5. Step 5: Solve for x
    x = 15,922,463,077.21/141,765.05
  6. Step 6: Final answer
    x = 112,315.85

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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.