Home / 236,073.47-325,785.11-128,643.44

Finding the Fourth Proportional to 236,073.47, 325,785.11 and 128,643.44

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Solution

The fourth proportional to 236,073.47, 325,785.11 and 128,643.44 is: 177,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,073.47 : 325,785.11 = 128,643.44 : x
  2. Step 2: Convert to fraction form
    236,073.47/325,785.11 = 128,643.44/x
  3. Step 3: Cross multiply
    236,073.47x = 325,785.11 × 128,643.44
  4. Step 4: Simplify right side
    236,073.47x = 41,910,114,979.04
  5. Step 5: Solve for x
    x = 41,910,114,979.04/236,073.47
  6. Step 6: Final answer
    x = 177,529.97

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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.