Home / 74,156.15-102,334.96-40,163.85

Finding the Fourth Proportional to 74,156.15, 102,334.96 and 40,163.85

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Solution

The fourth proportional to 74,156.15, 102,334.96 and 40,163.85 is: 55,425.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,156.15 : 102,334.96 = 40,163.85 : x
  2. Step 2: Convert to fraction form
    74,156.15/102,334.96 = 40,163.85/x
  3. Step 3: Cross multiply
    74,156.15x = 102,334.96 × 40,163.85
  4. Step 4: Simplify right side
    74,156.15x = 4,110,165,983.20
  5. Step 5: Solve for x
    x = 4,110,165,983.20/74,156.15
  6. Step 6: Final answer
    x = 55,425.83

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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.