Home / 133,621.80-184,421.84-79,912.72

Finding the Fourth Proportional to 133,621.80, 184,421.84 and 79,912.72

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Solution

The fourth proportional to 133,621.80, 184,421.84 and 79,912.72 is: 110,293.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,621.80 : 184,421.84 = 79,912.72 : x
  2. Step 2: Convert to fraction form
    133,621.80/184,421.84 = 79,912.72/x
  3. Step 3: Cross multiply
    133,621.80x = 184,421.84 × 79,912.72
  4. Step 4: Simplify right side
    133,621.80x = 14,737,650,861.80
  5. Step 5: Solve for x
    x = 14,737,650,861.80/133,621.80
  6. Step 6: Final answer
    x = 110,293.76

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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.