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Finding the Fourth Proportional to 199,318.64, 275,061.87 and 108,673.87

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Solution

The fourth proportional to 199,318.64, 275,061.87 and 108,673.87 is: 149,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,318.64 : 275,061.87 = 108,673.87 : x
  2. Step 2: Convert to fraction form
    199,318.64/275,061.87 = 108,673.87/x
  3. Step 3: Cross multiply
    199,318.64x = 275,061.87 × 108,673.87
  4. Step 4: Simplify right side
    199,318.64x = 29,892,037,902.34
  5. Step 5: Solve for x
    x = 29,892,037,902.34/199,318.64
  6. Step 6: Final answer
    x = 149,971.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.