Home / 82,135.86-123,215.93-25,963.23

Finding the Fourth Proportional to 82,135.86, 123,215.93 and 25,963.23

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Solution

The fourth proportional to 82,135.86, 123,215.93 and 25,963.23 is: 38,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,135.86 : 123,215.93 = 25,963.23 : x
  2. Step 2: Convert to fraction form
    82,135.86/123,215.93 = 25,963.23/x
  3. Step 3: Cross multiply
    82,135.86x = 123,215.93 × 25,963.23
  4. Step 4: Simplify right side
    82,135.86x = 3,199,083,530.25
  5. Step 5: Solve for x
    x = 3,199,083,530.25/82,135.86
  6. Step 6: Final answer
    x = 38,948.68

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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.