Home / 101,997.11-140,778.86-56,690.97

Finding the Fourth Proportional to 101,997.11, 140,778.86 and 56,690.97

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Solution

The fourth proportional to 101,997.11, 140,778.86 and 56,690.97 is: 78,246.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,997.11 : 140,778.86 = 56,690.97 : x
  2. Step 2: Convert to fraction form
    101,997.11/140,778.86 = 56,690.97/x
  3. Step 3: Cross multiply
    101,997.11x = 140,778.86 × 56,690.97
  4. Step 4: Simplify right side
    101,997.11x = 7,980,889,845.44
  5. Step 5: Solve for x
    x = 7,980,889,845.44/101,997.11
  6. Step 6: Final answer
    x = 78,246.24

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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.