Home / 236,115.64-325,835.13-128,686.42

Finding the Fourth Proportional to 236,115.64, 325,835.13 and 128,686.42

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Solution

The fourth proportional to 236,115.64, 325,835.13 and 128,686.42 is: 177,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,115.64 : 325,835.13 = 128,686.42 : x
  2. Step 2: Convert to fraction form
    236,115.64/325,835.13 = 128,686.42/x
  3. Step 3: Cross multiply
    236,115.64x = 325,835.13 × 128,686.42
  4. Step 4: Simplify right side
    236,115.64x = 41,930,556,389.93
  5. Step 5: Solve for x
    x = 41,930,556,389.93/236,115.64
  6. Step 6: Final answer
    x = 177,584.83

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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.