Home / 161,414.20-242,121.30-91,430.20

Finding the Fourth Proportional to 161,414.20, 242,121.30 and 91,430.20

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Solution

The fourth proportional to 161,414.20, 242,121.30 and 91,430.20 is: 137,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,414.20 : 242,121.30 = 91,430.20 : x
  2. Step 2: Convert to fraction form
    161,414.20/242,121.30 = 91,430.20/x
  3. Step 3: Cross multiply
    161,414.20x = 242,121.30 × 91,430.20
  4. Step 4: Simplify right side
    161,414.20x = 22,137,198,883.26
  5. Step 5: Solve for x
    x = 22,137,198,883.26/161,414.20
  6. Step 6: Final answer
    x = 137,145.30

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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.