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Finding the Fourth Proportional to 110,001.20, 165,066.60 and 72,669.20

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Solution

The fourth proportional to 110,001.20, 165,066.60 and 72,669.20 is: 109,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,001.20 : 165,066.60 = 72,669.20 : x
  2. Step 2: Convert to fraction form
    110,001.20/165,066.60 = 72,669.20/x
  3. Step 3: Cross multiply
    110,001.20x = 165,066.60 × 72,669.20
  4. Step 4: Simplify right side
    110,001.20x = 11,995,257,768.72
  5. Step 5: Solve for x
    x = 11,995,257,768.72/110,001.20
  6. Step 6: Final answer
    x = 109,046.61

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1.5x scale

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.