Home / 147,028.60-220,607.70-68,102.20

Finding the Fourth Proportional to 147,028.60, 220,607.70 and 68,102.20

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Solution

The fourth proportional to 147,028.60, 220,607.70 and 68,102.20 is: 102,183.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,028.60 : 220,607.70 = 68,102.20 : x
  2. Step 2: Convert to fraction form
    147,028.60/220,607.70 = 68,102.20/x
  3. Step 3: Cross multiply
    147,028.60x = 220,607.70 × 68,102.20
  4. Step 4: Simplify right side
    147,028.60x = 15,023,869,706.94
  5. Step 5: Solve for x
    x = 15,023,869,706.94/147,028.60
  6. Step 6: Final answer
    x = 102,183.31

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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.