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Finding the Fourth Proportional to 108,383.12, 162,487.16 and 99,635.12

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Solution

The fourth proportional to 108,383.12, 162,487.16 and 99,635.12 is: 149,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,383.12 : 162,487.16 = 99,635.12 : x
  2. Step 2: Convert to fraction form
    108,383.12/162,487.16 = 99,635.12/x
  3. Step 3: Cross multiply
    108,383.12x = 162,487.16 × 99,635.12
  4. Step 4: Simplify right side
    108,383.12x = 16,189,427,685.06
  5. Step 5: Solve for x
    x = 16,189,427,685.06/108,383.12
  6. Step 6: Final answer
    x = 149,372.22

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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.