Home / 236,120.52-325,836.83-128,688.25

Finding the Fourth Proportional to 236,120.52, 325,836.83 and 128,688.25

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Solution

The fourth proportional to 236,120.52, 325,836.83 and 128,688.25 is: 177,584.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,120.52 : 325,836.83 = 128,688.25 : x
  2. Step 2: Convert to fraction form
    236,120.52/325,836.83 = 128,688.25/x
  3. Step 3: Cross multiply
    236,120.52x = 325,836.83 × 128,688.25
  4. Step 4: Simplify right side
    236,120.52x = 41,931,369,809.06
  5. Step 5: Solve for x
    x = 41,931,369,809.06/236,120.52
  6. Step 6: Final answer
    x = 177,584.61

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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.