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Finding the Fourth Proportional to 177,212.81, 265,942.34 and 72,031.88

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Solution

The fourth proportional to 177,212.81, 265,942.34 and 72,031.88 is: 108,097.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,212.81 : 265,942.34 = 72,031.88 : x
  2. Step 2: Convert to fraction form
    177,212.81/265,942.34 = 72,031.88/x
  3. Step 3: Cross multiply
    177,212.81x = 265,942.34 × 72,031.88
  4. Step 4: Simplify right side
    177,212.81x = 19,156,327,296.62
  5. Step 5: Solve for x
    x = 19,156,327,296.62/177,212.81
  6. Step 6: Final answer
    x = 108,097.87

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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.