Home / 74,204.95-102,418.31-68,227.15

Finding the Fourth Proportional to 74,204.95, 102,418.31 and 68,227.15

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Solution

The fourth proportional to 74,204.95, 102,418.31 and 68,227.15 is: 94,167.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,204.95 : 102,418.31 = 68,227.15 : x
  2. Step 2: Convert to fraction form
    74,204.95/102,418.31 = 68,227.15/x
  3. Step 3: Cross multiply
    74,204.95x = 102,418.31 × 68,227.15
  4. Step 4: Simplify right side
    74,204.95x = 6,987,709,057.98
  5. Step 5: Solve for x
    x = 6,987,709,057.98/74,204.95
  6. Step 6: Final answer
    x = 94,167.69

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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.