Home / 102,403.80-141,317.94-57,084.66

Finding the Fourth Proportional to 102,403.80, 141,317.94 and 57,084.66

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Solution

The fourth proportional to 102,403.80, 141,317.94 and 57,084.66 is: 78,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,403.80 : 141,317.94 = 57,084.66 : x
  2. Step 2: Convert to fraction form
    102,403.80/141,317.94 = 57,084.66/x
  3. Step 3: Cross multiply
    102,403.80x = 141,317.94 × 57,084.66
  4. Step 4: Simplify right side
    102,403.80x = 8,067,086,556.80
  5. Step 5: Solve for x
    x = 8,067,086,556.80/102,403.80
  6. Step 6: Final answer
    x = 78,777.22

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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.