Home / 161,748.28-242,589-43,391.56

Finding the Fourth Proportional to 161,748.28, 242,589 and 43,391.56

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Solution

The fourth proportional to 161,748.28, 242,589 and 43,391.56 is: 65,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,748.28 : 242,589 = 43,391.56 : x
  2. Step 2: Convert to fraction form
    161,748.28/242,589 = 43,391.56/x
  3. Step 3: Cross multiply
    161,748.28x = 242,589 × 43,391.56
  4. Step 4: Simplify right side
    161,748.28x = 10,526,315,148.84
  5. Step 5: Solve for x
    x = 10,526,315,148.84/161,748.28
  6. Step 6: Final answer
    x = 65,078.37

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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.