Home / 131,383.20-181,308.99-74,794.50

Finding the Fourth Proportional to 131,383.20, 181,308.99 and 74,794.50

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Solution

The fourth proportional to 131,383.20, 181,308.99 and 74,794.50 is: 103,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,383.20 : 181,308.99 = 74,794.50 : x
  2. Step 2: Convert to fraction form
    131,383.20/181,308.99 = 74,794.50/x
  3. Step 3: Cross multiply
    131,383.20x = 181,308.99 × 74,794.50
  4. Step 4: Simplify right side
    131,383.20x = 13,560,915,252.56
  5. Step 5: Solve for x
    x = 13,560,915,252.56/131,383.20
  6. Step 6: Final answer
    x = 103,216.51

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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.