Home / 131,057.28-180,860.31-74,469.06

Finding the Fourth Proportional to 131,057.28, 180,860.31 and 74,469.06

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Solution

The fourth proportional to 131,057.28, 180,860.31 and 74,469.06 is: 102,768.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,057.28 : 180,860.31 = 74,469.06 : x
  2. Step 2: Convert to fraction form
    131,057.28/180,860.31 = 74,469.06/x
  3. Step 3: Cross multiply
    131,057.28x = 180,860.31 × 74,469.06
  4. Step 4: Simplify right side
    131,057.28x = 13,468,497,277.01
  5. Step 5: Solve for x
    x = 13,468,497,277.01/131,057.28
  6. Step 6: Final answer
    x = 102,768.02

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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.