Home / 123,481.35-170,403.21-69,776.73

Finding the Fourth Proportional to 123,481.35, 170,403.21 and 69,776.73

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Solution

The fourth proportional to 123,481.35, 170,403.21 and 69,776.73 is: 96,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,481.35 : 170,403.21 = 69,776.73 : x
  2. Step 2: Convert to fraction form
    123,481.35/170,403.21 = 69,776.73/x
  3. Step 3: Cross multiply
    123,481.35x = 170,403.21 × 69,776.73
  4. Step 4: Simplify right side
    123,481.35x = 11,890,178,775.30
  5. Step 5: Solve for x
    x = 11,890,178,775.30/123,481.35
  6. Step 6: Final answer
    x = 96,291.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.