Home / 220,136.29-303,820.20-123,346.70

Finding the Fourth Proportional to 220,136.29, 303,820.20 and 123,346.70

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Solution

The fourth proportional to 220,136.29, 303,820.20 and 123,346.70 is: 170,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,136.29 : 303,820.20 = 123,346.70 : x
  2. Step 2: Convert to fraction form
    220,136.29/303,820.20 = 123,346.70/x
  3. Step 3: Cross multiply
    220,136.29x = 303,820.20 × 123,346.70
  4. Step 4: Simplify right side
    220,136.29x = 37,475,219,203.93
  5. Step 5: Solve for x
    x = 37,475,219,203.93/220,136.29
  6. Step 6: Final answer
    x = 170,236.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.