Home / 101,928.78-140,651.44-59,511.92

Finding the Fourth Proportional to 101,928.78, 140,651.44 and 59,511.92

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Solution

The fourth proportional to 101,928.78, 140,651.44 and 59,511.92 is: 82,120.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,928.78 : 140,651.44 = 59,511.92 : x
  2. Step 2: Convert to fraction form
    101,928.78/140,651.44 = 59,511.92/x
  3. Step 3: Cross multiply
    101,928.78x = 140,651.44 × 59,511.92
  4. Step 4: Simplify right side
    101,928.78x = 8,370,436,393.13
  5. Step 5: Solve for x
    x = 8,370,436,393.13/101,928.78
  6. Step 6: Final answer
    x = 82,120.44

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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.