Home / 149,020.20-223,530.30-139,105.80

Finding the Fourth Proportional to 149,020.20, 223,530.30 and 139,105.80

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Solution

The fourth proportional to 149,020.20, 223,530.30 and 139,105.80 is: 208,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,020.20 : 223,530.30 = 139,105.80 : x
  2. Step 2: Convert to fraction form
    149,020.20/223,530.30 = 139,105.80/x
  3. Step 3: Cross multiply
    149,020.20x = 223,530.30 × 139,105.80
  4. Step 4: Simplify right side
    149,020.20x = 31,094,361,205.74
  5. Step 5: Solve for x
    x = 31,094,361,205.74/149,020.20
  6. Step 6: Final answer
    x = 208,658.70

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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.