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Finding the Fourth Proportional to 161,911.53, 242,884.58 and 43,584.57

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Solution

The fourth proportional to 161,911.53, 242,884.58 and 43,584.57 is: 65,381.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,911.53 : 242,884.58 = 43,584.57 : x
  2. Step 2: Convert to fraction form
    161,911.53/242,884.58 = 43,584.57/x
  3. Step 3: Cross multiply
    161,911.53x = 242,884.58 × 43,584.57
  4. Step 4: Simplify right side
    161,911.53x = 10,586,019,761.01
  5. Step 5: Solve for x
    x = 10,586,019,761.01/161,911.53
  6. Step 6: Final answer
    x = 65,381.51

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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.