Home / 135,550.08-187,059.58-75,121.76

Finding the Fourth Proportional to 135,550.08, 187,059.58 and 75,121.76

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Solution

The fourth proportional to 135,550.08, 187,059.58 and 75,121.76 is: 103,668.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,550.08 : 187,059.58 = 75,121.76 : x
  2. Step 2: Convert to fraction form
    135,550.08/187,059.58 = 75,121.76/x
  3. Step 3: Cross multiply
    135,550.08x = 187,059.58 × 75,121.76
  4. Step 4: Simplify right side
    135,550.08x = 14,052,244,874.46
  5. Step 5: Solve for x
    x = 14,052,244,874.46/135,550.08
  6. Step 6: Final answer
    x = 103,668.29

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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.