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Finding the Fourth Proportional to 103,755.60, 143,760.97 and 101,513.52

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Solution

The fourth proportional to 103,755.60, 143,760.97 and 101,513.52 is: 140,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,755.60 : 143,760.97 = 101,513.52 : x
  2. Step 2: Convert to fraction form
    103,755.60/143,760.97 = 101,513.52/x
  3. Step 3: Cross multiply
    103,755.60x = 143,760.97 × 101,513.52
  4. Step 4: Simplify right side
    103,755.60x = 14,593,682,103.31
  5. Step 5: Solve for x
    x = 14,593,682,103.31/103,755.60
  6. Step 6: Final answer
    x = 140,654.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.