Home / 141,822.48-195,712.75-81,391.72

Finding the Fourth Proportional to 141,822.48, 195,712.75 and 81,391.72

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Solution

The fourth proportional to 141,822.48, 195,712.75 and 81,391.72 is: 112,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,822.48 : 195,712.75 = 81,391.72 : x
  2. Step 2: Convert to fraction form
    141,822.48/195,712.75 = 81,391.72/x
  3. Step 3: Cross multiply
    141,822.48x = 195,712.75 × 81,391.72
  4. Step 4: Simplify right side
    141,822.48x = 15,929,396,655.67
  5. Step 5: Solve for x
    x = 15,929,396,655.67/141,822.48
  6. Step 6: Final answer
    x = 112,319.27

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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.