Home / 143,136.02-197,536.65-82,717.73

Finding the Fourth Proportional to 143,136.02, 197,536.65 and 82,717.73

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Solution

The fourth proportional to 143,136.02, 197,536.65 and 82,717.73 is: 114,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,136.02 : 197,536.65 = 82,717.73 : x
  2. Step 2: Convert to fraction form
    143,136.02/197,536.65 = 82,717.73/x
  3. Step 3: Cross multiply
    143,136.02x = 197,536.65 × 82,717.73
  4. Step 4: Simplify right side
    143,136.02x = 16,339,783,279.80
  5. Step 5: Solve for x
    x = 16,339,783,279.80/143,136.02
  6. Step 6: Final answer
    x = 114,155.64

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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.