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Finding the Fourth Proportional to 181,806.60, 272,709.90 and 103,074.60

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Solution

The fourth proportional to 181,806.60, 272,709.90 and 103,074.60 is: 154,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,806.60 : 272,709.90 = 103,074.60 : x
  2. Step 2: Convert to fraction form
    181,806.60/272,709.90 = 103,074.60/x
  3. Step 3: Cross multiply
    181,806.60x = 272,709.90 × 103,074.60
  4. Step 4: Simplify right side
    181,806.60x = 28,109,463,858.54
  5. Step 5: Solve for x
    x = 28,109,463,858.54/181,806.60
  6. Step 6: Final answer
    x = 154,611.90

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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.