Home / 141,992.60-195,943.19-81,520.68

Finding the Fourth Proportional to 141,992.60, 195,943.19 and 81,520.68

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Solution

The fourth proportional to 141,992.60, 195,943.19 and 81,520.68 is: 112,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,992.60 : 195,943.19 = 81,520.68 : x
  2. Step 2: Convert to fraction form
    141,992.60/195,943.19 = 81,520.68/x
  3. Step 3: Cross multiply
    141,992.60x = 195,943.19 × 81,520.68
  4. Step 4: Simplify right side
    141,992.60x = 15,973,421,682.57
  5. Step 5: Solve for x
    x = 15,973,421,682.57/141,992.60
  6. Step 6: Final answer
    x = 112,494.75

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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.