Home / 168,813.20-253,219.80-109,715.60

Finding the Fourth Proportional to 168,813.20, 253,219.80 and 109,715.60

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Solution

The fourth proportional to 168,813.20, 253,219.80 and 109,715.60 is: 164,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,813.20 : 253,219.80 = 109,715.60 : x
  2. Step 2: Convert to fraction form
    168,813.20/253,219.80 = 109,715.60/x
  3. Step 3: Cross multiply
    168,813.20x = 253,219.80 × 109,715.60
  4. Step 4: Simplify right side
    168,813.20x = 27,782,162,288.88
  5. Step 5: Solve for x
    x = 27,782,162,288.88/168,813.20
  6. Step 6: Final answer
    x = 164,573.40

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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.