Home / 143,149.41-197,575.20-82,722.60

Finding the Fourth Proportional to 143,149.41, 197,575.20 and 82,722.60

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Solution

The fourth proportional to 143,149.41, 197,575.20 and 82,722.60 is: 114,173.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,149.41 : 197,575.20 = 82,722.60 : x
  2. Step 2: Convert to fraction form
    143,149.41/197,575.20 = 82,722.60/x
  3. Step 3: Cross multiply
    143,149.41x = 197,575.20 × 82,722.60
  4. Step 4: Simplify right side
    143,149.41x = 16,343,934,239.52
  5. Step 5: Solve for x
    x = 16,343,934,239.52/143,149.41
  6. Step 6: Final answer
    x = 114,173.95

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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.