Home / 102,565.82-141,540.44-57,243.30

Finding the Fourth Proportional to 102,565.82, 141,540.44 and 57,243.30

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Solution

The fourth proportional to 102,565.82, 141,540.44 and 57,243.30 is: 78,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,565.82 : 141,540.44 = 57,243.30 : x
  2. Step 2: Convert to fraction form
    102,565.82/141,540.44 = 57,243.30/x
  3. Step 3: Cross multiply
    102,565.82x = 141,540.44 × 57,243.30
  4. Step 4: Simplify right side
    102,565.82x = 8,102,241,582.84
  5. Step 5: Solve for x
    x = 8,102,241,582.84/102,565.82
  6. Step 6: Final answer
    x = 78,995.54

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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.