Home / 143,136.64-214,434.24-137,130.88

Finding the Fourth Proportional to 143,136.64, 214,434.24 and 137,130.88

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Solution

The fourth proportional to 143,136.64, 214,434.24 and 137,130.88 is: 205,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,136.64 : 214,434.24 = 137,130.88 : x
  2. Step 2: Convert to fraction form
    143,136.64/214,434.24 = 137,130.88/x
  3. Step 3: Cross multiply
    143,136.64x = 214,434.24 × 137,130.88
  4. Step 4: Simplify right side
    143,136.64x = 29,405,556,033.33
  5. Step 5: Solve for x
    x = 29,405,556,033.33/143,136.64
  6. Step 6: Final answer
    x = 205,436.96

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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.