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Finding the Fourth Proportional to 108,249.32, 161,965.66 and 63,900.20

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Solution

The fourth proportional to 108,249.32, 161,965.66 and 63,900.20 is: 95,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,249.32 : 161,965.66 = 63,900.20 : x
  2. Step 2: Convert to fraction form
    108,249.32/161,965.66 = 63,900.20/x
  3. Step 3: Cross multiply
    108,249.32x = 161,965.66 × 63,900.20
  4. Step 4: Simplify right side
    108,249.32x = 10,349,638,067.13
  5. Step 5: Solve for x
    x = 10,349,638,067.13/108,249.32
  6. Step 6: Final answer
    x = 95,609.27

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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.