Home / 102,015.41-140,778.44-56,692.22

Finding the Fourth Proportional to 102,015.41, 140,778.44 and 56,692.22

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Solution

The fourth proportional to 102,015.41, 140,778.44 and 56,692.22 is: 78,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,015.41 : 140,778.44 = 56,692.22 : x
  2. Step 2: Convert to fraction form
    102,015.41/140,778.44 = 56,692.22/x
  3. Step 3: Cross multiply
    102,015.41x = 140,778.44 × 56,692.22
  4. Step 4: Simplify right side
    102,015.41x = 7,981,042,844.98
  5. Step 5: Solve for x
    x = 7,981,042,844.98/102,015.41
  6. Step 6: Final answer
    x = 78,233.70

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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.