Home / 236,007.78-325,689.76-128,577.48

Finding the Fourth Proportional to 236,007.78, 325,689.76 and 128,577.48

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Solution

The fourth proportional to 236,007.78, 325,689.76 and 128,577.48 is: 177,436.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,007.78 : 325,689.76 = 128,577.48 : x
  2. Step 2: Convert to fraction form
    236,007.78/325,689.76 = 128,577.48/x
  3. Step 3: Cross multiply
    236,007.78x = 325,689.76 × 128,577.48
  4. Step 4: Simplify right side
    236,007.78x = 41,876,366,331.27
  5. Step 5: Solve for x
    x = 41,876,366,331.27/236,007.78
  6. Step 6: Final answer
    x = 177,436.38

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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.