Home / 215,913.72-323,861.40-73,771.74

Finding the Fourth Proportional to 215,913.72, 323,861.40 and 73,771.74

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Solution

The fourth proportional to 215,913.72, 323,861.40 and 73,771.74 is: 110,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,913.72 : 323,861.40 = 73,771.74 : x
  2. Step 2: Convert to fraction form
    215,913.72/323,861.40 = 73,771.74/x
  3. Step 3: Cross multiply
    215,913.72x = 323,861.40 × 73,771.74
  4. Step 4: Simplify right side
    215,913.72x = 23,891,818,996.84
  5. Step 5: Solve for x
    x = 23,891,818,996.84/215,913.72
  6. Step 6: Final answer
    x = 110,654.47

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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.