Home / 168,822.80-253,234.20-68,917.40

Finding the Fourth Proportional to 168,822.80, 253,234.20 and 68,917.40

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Solution

The fourth proportional to 168,822.80, 253,234.20 and 68,917.40 is: 103,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,822.80 : 253,234.20 = 68,917.40 : x
  2. Step 2: Convert to fraction form
    168,822.80/253,234.20 = 68,917.40/x
  3. Step 3: Cross multiply
    168,822.80x = 253,234.20 × 68,917.40
  4. Step 4: Simplify right side
    168,822.80x = 17,452,242,655.08
  5. Step 5: Solve for x
    x = 17,452,242,655.08/168,822.80
  6. Step 6: Final answer
    x = 103,376.10

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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.