Home / 168,168.08-251,890.20-79,288.40

Finding the Fourth Proportional to 168,168.08, 251,890.20 and 79,288.40

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Solution

The fourth proportional to 168,168.08, 251,890.20 and 79,288.40 is: 118,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,168.08 : 251,890.20 = 79,288.40 : x
  2. Step 2: Convert to fraction form
    168,168.08/251,890.20 = 79,288.40/x
  3. Step 3: Cross multiply
    168,168.08x = 251,890.20 × 79,288.40
  4. Step 4: Simplify right side
    168,168.08x = 19,971,970,933.68
  5. Step 5: Solve for x
    x = 19,971,970,933.68/168,168.08
  6. Step 6: Final answer
    x = 118,761.96

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1.5x scale

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.