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Finding the Fourth Proportional to 101,065.20, 151,306.20 and 98,149.20

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Solution

The fourth proportional to 101,065.20, 151,306.20 and 98,149.20 is: 146,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,065.20 : 151,306.20 = 98,149.20 : x
  2. Step 2: Convert to fraction form
    101,065.20/151,306.20 = 98,149.20/x
  3. Step 3: Cross multiply
    101,065.20x = 151,306.20 × 98,149.20
  4. Step 4: Simplify right side
    101,065.20x = 14,850,582,485.04
  5. Step 5: Solve for x
    x = 14,850,582,485.04/101,065.20
  6. Step 6: Final answer
    x = 146,940.61

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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.