Home / 141,553.40-195,344.35-81,127.61

Finding the Fourth Proportional to 141,553.40, 195,344.35 and 81,127.61

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Solution

The fourth proportional to 141,553.40, 195,344.35 and 81,127.61 is: 111,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,553.40 : 195,344.35 = 81,127.61 : x
  2. Step 2: Convert to fraction form
    141,553.40/195,344.35 = 81,127.61/x
  3. Step 3: Cross multiply
    141,553.40x = 195,344.35 × 81,127.61
  4. Step 4: Simplify right side
    141,553.40x = 15,847,819,795.50
  5. Step 5: Solve for x
    x = 15,847,819,795.50/141,553.40
  6. Step 6: Final answer
    x = 111,956.48

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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.