Home / 141,821.24-195,717.80-81,402.98

Finding the Fourth Proportional to 141,821.24, 195,717.80 and 81,402.98

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Solution

The fourth proportional to 141,821.24, 195,717.80 and 81,402.98 is: 112,338.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,821.24 : 195,717.80 = 81,402.98 : x
  2. Step 2: Convert to fraction form
    141,821.24/195,717.80 = 81,402.98/x
  3. Step 3: Cross multiply
    141,821.24x = 195,717.80 × 81,402.98
  4. Step 4: Simplify right side
    141,821.24x = 15,932,011,383.96
  5. Step 5: Solve for x
    x = 15,932,011,383.96/141,821.24
  6. Step 6: Final answer
    x = 112,338.69

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1.5x scale

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.