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Finding the Fourth Proportional to 101,679.35, 152,512.34 and 35,120.43

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Solution

The fourth proportional to 101,679.35, 152,512.34 and 35,120.43 is: 52,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,679.35 : 152,512.34 = 35,120.43 : x
  2. Step 2: Convert to fraction form
    101,679.35/152,512.34 = 35,120.43/x
  3. Step 3: Cross multiply
    101,679.35x = 152,512.34 × 35,120.43
  4. Step 4: Simplify right side
    101,679.35x = 5,356,298,785.50
  5. Step 5: Solve for x
    x = 5,356,298,785.50/101,679.35
  6. Step 6: Final answer
    x = 52,678.34

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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.