Home / 82,181.34-123,268.77-57,147.66

Finding the Fourth Proportional to 82,181.34, 123,268.77 and 57,147.66

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Solution

The fourth proportional to 82,181.34, 123,268.77 and 57,147.66 is: 85,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,181.34 : 123,268.77 = 57,147.66 : x
  2. Step 2: Convert to fraction form
    82,181.34/123,268.77 = 57,147.66/x
  3. Step 3: Cross multiply
    82,181.34x = 123,268.77 × 57,147.66
  4. Step 4: Simplify right side
    82,181.34x = 7,044,521,756.58
  5. Step 5: Solve for x
    x = 7,044,521,756.58/82,181.34
  6. Step 6: Final answer
    x = 85,719.24

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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.