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Finding the Fourth Proportional to 108,979.80, 163,469.70 and 95,857.80

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Solution

The fourth proportional to 108,979.80, 163,469.70 and 95,857.80 is: 143,786.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,979.80 : 163,469.70 = 95,857.80 : x
  2. Step 2: Convert to fraction form
    108,979.80/163,469.70 = 95,857.80/x
  3. Step 3: Cross multiply
    108,979.80x = 163,469.70 × 95,857.80
  4. Step 4: Simplify right side
    108,979.80x = 15,669,845,808.66
  5. Step 5: Solve for x
    x = 15,669,845,808.66/108,979.80
  6. Step 6: Final answer
    x = 143,786.70

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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.