Home / 236,112.39-325,839.12-128,688.31

Finding the Fourth Proportional to 236,112.39, 325,839.12 and 128,688.31

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Solution

The fourth proportional to 236,112.39, 325,839.12 and 128,688.31 is: 177,592.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,112.39 : 325,839.12 = 128,688.31 : x
  2. Step 2: Convert to fraction form
    236,112.39/325,839.12 = 128,688.31/x
  3. Step 3: Cross multiply
    236,112.39x = 325,839.12 × 128,688.31
  4. Step 4: Simplify right side
    236,112.39x = 41,931,685,684.69
  5. Step 5: Solve for x
    x = 41,931,685,684.69/236,112.39
  6. Step 6: Final answer
    x = 177,592.06

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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.