Home / 220,136.13-303,773.36-122,012.87

Finding the Fourth Proportional to 220,136.13, 303,773.36 and 122,012.87

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Solution

The fourth proportional to 220,136.13, 303,773.36 and 122,012.87 is: 168,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,136.13 : 303,773.36 = 122,012.87 : x
  2. Step 2: Convert to fraction form
    220,136.13/303,773.36 = 122,012.87/x
  3. Step 3: Cross multiply
    220,136.13x = 303,773.36 × 122,012.87
  4. Step 4: Simplify right side
    220,136.13x = 37,064,257,354.21
  5. Step 5: Solve for x
    x = 37,064,257,354.21/220,136.13
  6. Step 6: Final answer
    x = 168,369.71

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1.5x scale

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.