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Finding the Fourth Proportional to 161,105.80, 241,428.30 and 118,654.60

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Solution

The fourth proportional to 161,105.80, 241,428.30 and 118,654.60 is: 177,812.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,105.80 : 241,428.30 = 118,654.60 : x
  2. Step 2: Convert to fraction form
    161,105.80/241,428.30 = 118,654.60/x
  3. Step 3: Cross multiply
    161,105.80x = 241,428.30 × 118,654.60
  4. Step 4: Simplify right side
    161,105.80x = 28,646,578,365.18
  5. Step 5: Solve for x
    x = 28,646,578,365.18/161,105.80
  6. Step 6: Final answer
    x = 177,812.21

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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.