Home / 147,183.40-220,623.90-72,188.20

Finding the Fourth Proportional to 147,183.40, 220,623.90 and 72,188.20

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Solution

The fourth proportional to 147,183.40, 220,623.90 and 72,188.20 is: 108,208.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,183.40 : 220,623.90 = 72,188.20 : x
  2. Step 2: Convert to fraction form
    147,183.40/220,623.90 = 72,188.20/x
  3. Step 3: Cross multiply
    147,183.40x = 220,623.90 × 72,188.20
  4. Step 4: Simplify right side
    147,183.40x = 15,926,442,217.98
  5. Step 5: Solve for x
    x = 15,926,442,217.98/147,183.40
  6. Step 6: Final answer
    x = 108,208.14

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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.