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Finding the Fourth Proportional to 169,141.64, 253,795.82 and 79,190.43

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Solution

The fourth proportional to 169,141.64, 253,795.82 and 79,190.43 is: 118,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,141.64 : 253,795.82 = 79,190.43 : x
  2. Step 2: Convert to fraction form
    169,141.64/253,795.82 = 79,190.43/x
  3. Step 3: Cross multiply
    169,141.64x = 253,795.82 × 79,190.43
  4. Step 4: Simplify right side
    169,141.64x = 20,098,199,722.05
  5. Step 5: Solve for x
    x = 20,098,199,722.05/169,141.64
  6. Step 6: Final answer
    x = 118,824.67

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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.