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Finding the Fourth Proportional to 149,477.01, 223,961.79 and 90,188.12

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Solution

The fourth proportional to 149,477.01, 223,961.79 and 90,188.12 is: 135,129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,477.01 : 223,961.79 = 90,188.12 : x
  2. Step 2: Convert to fraction form
    149,477.01/223,961.79 = 90,188.12/x
  3. Step 3: Cross multiply
    149,477.01x = 223,961.79 × 90,188.12
  4. Step 4: Simplify right side
    149,477.01x = 20,198,692,614.14
  5. Step 5: Solve for x
    x = 20,198,692,614.14/149,477.01
  6. Step 6: Final answer
    x = 135,129.09

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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.