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Finding the Fourth Proportional to 161,620.80, 242,470.08 and 50,812.80

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Solution

The fourth proportional to 161,620.80, 242,470.08 and 50,812.80 is: 76,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,620.80 : 242,470.08 = 50,812.80 : x
  2. Step 2: Convert to fraction form
    161,620.80/242,470.08 = 50,812.80/x
  3. Step 3: Cross multiply
    161,620.80x = 242,470.08 × 50,812.80
  4. Step 4: Simplify right side
    161,620.80x = 12,320,583,681.02
  5. Step 5: Solve for x
    x = 12,320,583,681.02/161,620.80
  6. Step 6: Final answer
    x = 76,231.42

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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.