Home / 236,039.05-325,729.65-128,609.83

Finding the Fourth Proportional to 236,039.05, 325,729.65 and 128,609.83

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Solution

The fourth proportional to 236,039.05, 325,729.65 and 128,609.83 is: 177,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,039.05 : 325,729.65 = 128,609.83 : x
  2. Step 2: Convert to fraction form
    236,039.05/325,729.65 = 128,609.83/x
  3. Step 3: Cross multiply
    236,039.05x = 325,729.65 × 128,609.83
  4. Step 4: Simplify right side
    236,039.05x = 41,892,034,912.46
  5. Step 5: Solve for x
    x = 41,892,034,912.46/236,039.05
  6. Step 6: Final answer
    x = 177,479.26

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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.