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Finding the Fourth Proportional to 161,693.40, 242,179.26 and 123,975.84

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Solution

The fourth proportional to 161,693.40, 242,179.26 and 123,975.84 is: 185,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,693.40 : 242,179.26 = 123,975.84 : x
  2. Step 2: Convert to fraction form
    161,693.40/242,179.26 = 123,975.84/x
  3. Step 3: Cross multiply
    161,693.40x = 242,179.26 × 123,975.84
  4. Step 4: Simplify right side
    161,693.40x = 30,024,377,189.08
  5. Step 5: Solve for x
    x = 30,024,377,189.08/161,693.40
  6. Step 6: Final answer
    x = 185,687.09

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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.