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Finding the Fourth Proportional to 163,819.68, 245,729.62 and 45,491.03

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Solution

The fourth proportional to 163,819.68, 245,729.62 and 45,491.03 is: 68,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,819.68 : 245,729.62 = 45,491.03 : x
  2. Step 2: Convert to fraction form
    163,819.68/245,729.62 = 45,491.03/x
  3. Step 3: Cross multiply
    163,819.68x = 245,729.62 × 45,491.03
  4. Step 4: Simplify right side
    163,819.68x = 11,178,493,515.31
  5. Step 5: Solve for x
    x = 11,178,493,515.31/163,819.68
  6. Step 6: Final answer
    x = 68,236.57

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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.