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Finding the Fourth Proportional to 68,150.34, 102,066.75 and 65,785.68

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Solution

The fourth proportional to 68,150.34, 102,066.75 and 65,785.68 is: 98,525.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,150.34 : 102,066.75 = 65,785.68 : x
  2. Step 2: Convert to fraction form
    68,150.34/102,066.75 = 65,785.68/x
  3. Step 3: Cross multiply
    68,150.34x = 102,066.75 × 65,785.68
  4. Step 4: Simplify right side
    68,150.34x = 6,714,530,554.14
  5. Step 5: Solve for x
    x = 6,714,530,554.14/68,150.34
  6. Step 6: Final answer
    x = 98,525.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.