Home / 168,732.03-253,002.20-68,775.15

Finding the Fourth Proportional to 168,732.03, 253,002.20 and 68,775.15

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Solution

The fourth proportional to 168,732.03, 253,002.20 and 68,775.15 is: 103,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,732.03 : 253,002.20 = 68,775.15 : x
  2. Step 2: Convert to fraction form
    168,732.03/253,002.20 = 68,775.15/x
  3. Step 3: Cross multiply
    168,732.03x = 253,002.20 × 68,775.15
  4. Step 4: Simplify right side
    168,732.03x = 17,400,263,911.45
  5. Step 5: Solve for x
    x = 17,400,263,911.45/168,732.03
  6. Step 6: Final answer
    x = 103,123.66

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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.