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Finding the Fourth Proportional to 101,687.49, 140,333.88 and 58,650.97

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Solution

The fourth proportional to 101,687.49, 140,333.88 and 58,650.97 is: 80,941.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,687.49 : 140,333.88 = 58,650.97 : x
  2. Step 2: Convert to fraction form
    101,687.49/140,333.88 = 58,650.97/x
  3. Step 3: Cross multiply
    101,687.49x = 140,333.88 × 58,650.97
  4. Step 4: Simplify right side
    101,687.49x = 8,230,718,185.86
  5. Step 5: Solve for x
    x = 8,230,718,185.86/101,687.49
  6. Step 6: Final answer
    x = 80,941.31

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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.