Home / 143,136.30-214,704.45-101,145.90

Finding the Fourth Proportional to 143,136.30, 214,704.45 and 101,145.90

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Solution

The fourth proportional to 143,136.30, 214,704.45 and 101,145.90 is: 151,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,136.30 : 214,704.45 = 101,145.90 : x
  2. Step 2: Convert to fraction form
    143,136.30/214,704.45 = 101,145.90/x
  3. Step 3: Cross multiply
    143,136.30x = 214,704.45 × 101,145.90
  4. Step 4: Simplify right side
    143,136.30x = 21,716,474,829.26
  5. Step 5: Solve for x
    x = 21,716,474,829.26/143,136.30
  6. Step 6: Final answer
    x = 151,718.85

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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.