Home / 100,893.41-139,233.84-55,572.99

Finding the Fourth Proportional to 100,893.41, 139,233.84 and 55,572.99

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Solution

The fourth proportional to 100,893.41, 139,233.84 and 55,572.99 is: 76,691.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,893.41 : 139,233.84 = 55,572.99 : x
  2. Step 2: Convert to fraction form
    100,893.41/139,233.84 = 55,572.99/x
  3. Step 3: Cross multiply
    100,893.41x = 139,233.84 × 55,572.99
  4. Step 4: Simplify right side
    100,893.41x = 7,737,640,797.98
  5. Step 5: Solve for x
    x = 7,737,640,797.98/100,893.41
  6. Step 6: Final answer
    x = 76,691.24

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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.