Home / 123,639.22-185,456.80-39,398.25

Finding the Fourth Proportional to 123,639.22, 185,456.80 and 39,398.25

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Solution

The fourth proportional to 123,639.22, 185,456.80 and 39,398.25 is: 59,096.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,639.22 : 185,456.80 = 39,398.25 : x
  2. Step 2: Convert to fraction form
    123,639.22/185,456.80 = 39,398.25/x
  3. Step 3: Cross multiply
    123,639.22x = 185,456.80 × 39,398.25
  4. Step 4: Simplify right side
    123,639.22x = 7,306,673,370.60
  5. Step 5: Solve for x
    x = 7,306,673,370.60/123,639.22
  6. Step 6: Final answer
    x = 59,096.73

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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.