Home / 133,956.72-184,912.20-100,519.92

Finding the Fourth Proportional to 133,956.72, 184,912.20 and 100,519.92

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Solution

The fourth proportional to 133,956.72, 184,912.20 and 100,519.92 is: 138,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,956.72 : 184,912.20 = 100,519.92 : x
  2. Step 2: Convert to fraction form
    133,956.72/184,912.20 = 100,519.92/x
  3. Step 3: Cross multiply
    133,956.72x = 184,912.20 × 100,519.92
  4. Step 4: Simplify right side
    133,956.72x = 18,587,359,551.02
  5. Step 5: Solve for x
    x = 18,587,359,551.02/133,956.72
  6. Step 6: Final answer
    x = 138,756.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.