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Finding the Fourth Proportional to 161,838.55, 242,757.42 and 43,509.88

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Solution

The fourth proportional to 161,838.55, 242,757.42 and 43,509.88 is: 65,264.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,838.55 : 242,757.42 = 43,509.88 : x
  2. Step 2: Convert to fraction form
    161,838.55/242,757.42 = 43,509.88/x
  3. Step 3: Cross multiply
    161,838.55x = 242,757.42 × 43,509.88
  4. Step 4: Simplify right side
    161,838.55x = 10,562,346,213.31
  5. Step 5: Solve for x
    x = 10,562,346,213.31/161,838.55
  6. Step 6: Final answer
    x = 65,264.71

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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.