Home / 128,369.48-192,393.83-88,609.82

Finding the Fourth Proportional to 128,369.48, 192,393.83 and 88,609.82

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Solution

The fourth proportional to 128,369.48, 192,393.83 and 88,609.82 is: 132,804.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,369.48 : 192,393.83 = 88,609.82 : x
  2. Step 2: Convert to fraction form
    128,369.48/192,393.83 = 88,609.82/x
  3. Step 3: Cross multiply
    128,369.48x = 192,393.83 × 88,609.82
  4. Step 4: Simplify right side
    128,369.48x = 17,047,981,904.97
  5. Step 5: Solve for x
    x = 17,047,981,904.97/128,369.48
  6. Step 6: Final answer
    x = 132,804.02

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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.