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Finding the Fourth Proportional to 199,365.70, 275,101.41 and 118,781.86

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Solution

The fourth proportional to 199,365.70, 275,101.41 and 118,781.86 is: 163,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,365.70 : 275,101.41 = 118,781.86 : x
  2. Step 2: Convert to fraction form
    199,365.70/275,101.41 = 118,781.86/x
  3. Step 3: Cross multiply
    199,365.70x = 275,101.41 × 118,781.86
  4. Step 4: Simplify right side
    199,365.70x = 32,677,057,168.42
  5. Step 5: Solve for x
    x = 32,677,057,168.42/199,365.70
  6. Step 6: Final answer
    x = 163,905.11

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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.