Home / 128,252.22-192,450.81-69,086.46

Finding the Fourth Proportional to 128,252.22, 192,450.81 and 69,086.46

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Solution

The fourth proportional to 128,252.22, 192,450.81 and 69,086.46 is: 103,668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,252.22 : 192,450.81 = 69,086.46 : x
  2. Step 2: Convert to fraction form
    128,252.22/192,450.81 = 69,086.46/x
  3. Step 3: Cross multiply
    128,252.22x = 192,450.81 × 69,086.46
  4. Step 4: Simplify right side
    128,252.22x = 13,295,745,187.03
  5. Step 5: Solve for x
    x = 13,295,745,187.03/128,252.22
  6. Step 6: Final answer
    x = 103,668.73

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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.