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Finding the Fourth Proportional to 161,880.37, 242,842.72 and 55,235.72

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Solution

The fourth proportional to 161,880.37, 242,842.72 and 55,235.72 is: 82,861.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,880.37 : 242,842.72 = 55,235.72 : x
  2. Step 2: Convert to fraction form
    161,880.37/242,842.72 = 55,235.72/x
  3. Step 3: Cross multiply
    161,880.37x = 242,842.72 × 55,235.72
  4. Step 4: Simplify right side
    161,880.37x = 13,413,591,133.66
  5. Step 5: Solve for x
    x = 13,413,591,133.66/161,880.37
  6. Step 6: Final answer
    x = 82,861.14

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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.