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Finding the Fourth Proportional to 161,442.72, 242,200.93 and 49,138.85

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Solution

The fourth proportional to 161,442.72, 242,200.93 and 49,138.85 is: 73,719.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,442.72 : 242,200.93 = 49,138.85 : x
  2. Step 2: Convert to fraction form
    161,442.72/242,200.93 = 49,138.85/x
  3. Step 3: Cross multiply
    161,442.72x = 242,200.93 × 49,138.85
  4. Step 4: Simplify right side
    161,442.72x = 11,901,475,169.13
  5. Step 5: Solve for x
    x = 11,901,475,169.13/161,442.72
  6. Step 6: Final answer
    x = 73,719.49

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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.