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Finding the Fourth Proportional to 165,011, 247,620.62 and 70,241.04

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Solution

The fourth proportional to 165,011, 247,620.62 and 70,241.04 is: 105,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,011 : 247,620.62 = 70,241.04 : x
  2. Step 2: Convert to fraction form
    165,011/247,620.62 = 70,241.04/x
  3. Step 3: Cross multiply
    165,011x = 247,620.62 × 70,241.04
  4. Step 4: Simplify right side
    165,011x = 17,393,129,874.24
  5. Step 5: Solve for x
    x = 17,393,129,874.24/165,011
  6. Step 6: Final answer
    x = 105,405.88

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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.