Home / 74,950.31-112,149.97-70,892.69

Finding the Fourth Proportional to 74,950.31, 112,149.97 and 70,892.69

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Solution

The fourth proportional to 74,950.31, 112,149.97 and 70,892.69 is: 106,078.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,950.31 : 112,149.97 = 70,892.69 : x
  2. Step 2: Convert to fraction form
    74,950.31/112,149.97 = 70,892.69/x
  3. Step 3: Cross multiply
    74,950.31x = 112,149.97 × 70,892.69
  4. Step 4: Simplify right side
    74,950.31x = 7,950,612,318.74
  5. Step 5: Solve for x
    x = 7,950,612,318.74/74,950.31
  6. Step 6: Final answer
    x = 106,078.44

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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.