Home / 136,745.25-188,715.83-80,174.85

Finding the Fourth Proportional to 136,745.25, 188,715.83 and 80,174.85

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Solution

The fourth proportional to 136,745.25, 188,715.83 and 80,174.85 is: 110,645.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,745.25 : 188,715.83 = 80,174.85 : x
  2. Step 2: Convert to fraction form
    136,745.25/188,715.83 = 80,174.85/x
  3. Step 3: Cross multiply
    136,745.25x = 188,715.83 × 80,174.85
  4. Step 4: Simplify right side
    136,745.25x = 15,130,262,962.00
  5. Step 5: Solve for x
    x = 15,130,262,962.00/136,745.25
  6. Step 6: Final answer
    x = 110,645.62

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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.