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Finding the Fourth Proportional to 108,190.96, 162,049.08 and 89,258

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Solution

The fourth proportional to 108,190.96, 162,049.08 and 89,258 is: 133,691.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,190.96 : 162,049.08 = 89,258 : x
  2. Step 2: Convert to fraction form
    108,190.96/162,049.08 = 89,258/x
  3. Step 3: Cross multiply
    108,190.96x = 162,049.08 × 89,258
  4. Step 4: Simplify right side
    108,190.96x = 14,464,176,782.64
  5. Step 5: Solve for x
    x = 14,464,176,782.64/108,190.96
  6. Step 6: Final answer
    x = 133,691.18

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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.