Home / 74,112.64-102,204.48-68,682.88

Finding the Fourth Proportional to 74,112.64, 102,204.48 and 68,682.88

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Solution

The fourth proportional to 74,112.64, 102,204.48 and 68,682.88 is: 94,716.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,112.64 : 102,204.48 = 68,682.88 : x
  2. Step 2: Convert to fraction form
    74,112.64/102,204.48 = 68,682.88/x
  3. Step 3: Cross multiply
    74,112.64x = 102,204.48 × 68,682.88
  4. Step 4: Simplify right side
    74,112.64x = 7,019,698,035.30
  5. Step 5: Solve for x
    x = 7,019,698,035.30/74,112.64
  6. Step 6: Final answer
    x = 94,716.61

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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.