Home / 141,932.45-195,871.30-81,515.36

Finding the Fourth Proportional to 141,932.45, 195,871.30 and 81,515.36

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Solution

The fourth proportional to 141,932.45, 195,871.30 and 81,515.36 is: 112,493.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,932.45 : 195,871.30 = 81,515.36 : x
  2. Step 2: Convert to fraction form
    141,932.45/195,871.30 = 81,515.36/x
  3. Step 3: Cross multiply
    141,932.45x = 195,871.30 × 81,515.36
  4. Step 4: Simplify right side
    141,932.45x = 15,966,519,819.06
  5. Step 5: Solve for x
    x = 15,966,519,819.06/141,932.45
  6. Step 6: Final answer
    x = 112,493.79

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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.