Home / 103,772.23-155,658.39-80,114.34

Finding the Fourth Proportional to 103,772.23, 155,658.39 and 80,114.34

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Solution

The fourth proportional to 103,772.23, 155,658.39 and 80,114.34 is: 120,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,772.23 : 155,658.39 = 80,114.34 : x
  2. Step 2: Convert to fraction form
    103,772.23/155,658.39 = 80,114.34/x
  3. Step 3: Cross multiply
    103,772.23x = 155,658.39 × 80,114.34
  4. Step 4: Simplify right side
    103,772.23x = 12,470,469,180.31
  5. Step 5: Solve for x
    x = 12,470,469,180.31/103,772.23
  6. Step 6: Final answer
    x = 120,171.54

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1.5x scale

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.