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Finding the Fourth Proportional to 100,895.44, 139,234.44 and 55,572.52

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Solution

The fourth proportional to 100,895.44, 139,234.44 and 55,572.52 is: 76,689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,895.44 : 139,234.44 = 55,572.52 : x
  2. Step 2: Convert to fraction form
    100,895.44/139,234.44 = 55,572.52/x
  3. Step 3: Cross multiply
    100,895.44x = 139,234.44 × 55,572.52
  4. Step 4: Simplify right side
    100,895.44x = 7,737,608,701.59
  5. Step 5: Solve for x
    x = 7,737,608,701.59/100,895.44
  6. Step 6: Final answer
    x = 76,689.38

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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.