Home / 100,137.24-138,179.94-59,842.98

Finding the Fourth Proportional to 100,137.24, 138,179.94 and 59,842.98

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Solution

The fourth proportional to 100,137.24, 138,179.94 and 59,842.98 is: 82,577.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,137.24 : 138,179.94 = 59,842.98 : x
  2. Step 2: Convert to fraction form
    100,137.24/138,179.94 = 59,842.98/x
  3. Step 3: Cross multiply
    100,137.24x = 138,179.94 × 59,842.98
  4. Step 4: Simplify right side
    100,137.24x = 8,269,099,385.82
  5. Step 5: Solve for x
    x = 8,269,099,385.82/100,137.24
  6. Step 6: Final answer
    x = 82,577.66

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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.