Home / 102,839.96-141,918.74-57,517.76

Finding the Fourth Proportional to 102,839.96, 141,918.74 and 57,517.76

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Solution

The fourth proportional to 102,839.96, 141,918.74 and 57,517.76 is: 79,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,839.96 : 141,918.74 = 57,517.76 : x
  2. Step 2: Convert to fraction form
    102,839.96/141,918.74 = 57,517.76/x
  3. Step 3: Cross multiply
    102,839.96x = 141,918.74 × 57,517.76
  4. Step 4: Simplify right side
    102,839.96x = 8,162,847,739.23
  5. Step 5: Solve for x
    x = 8,162,847,739.23/102,839.96
  6. Step 6: Final answer
    x = 79,374.28

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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.