Home / 236,120.97-325,837.41-128,688.69

Finding the Fourth Proportional to 236,120.97, 325,837.41 and 128,688.69

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Solution

The fourth proportional to 236,120.97, 325,837.41 and 128,688.69 is: 177,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,120.97 : 325,837.41 = 128,688.69 : x
  2. Step 2: Convert to fraction form
    236,120.97/325,837.41 = 128,688.69/x
  3. Step 3: Cross multiply
    236,120.97x = 325,837.41 × 128,688.69
  4. Step 4: Simplify right side
    236,120.97x = 41,931,589,445.89
  5. Step 5: Solve for x
    x = 41,931,589,445.89/236,120.97
  6. Step 6: Final answer
    x = 177,585.20

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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.