Home / 236,113.09-325,826.55-128,680.81

Finding the Fourth Proportional to 236,113.09, 325,826.55 and 128,680.81

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Solution

The fourth proportional to 236,113.09, 325,826.55 and 128,680.81 is: 177,574.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,113.09 : 325,826.55 = 128,680.81 : x
  2. Step 2: Convert to fraction form
    236,113.09/325,826.55 = 128,680.81/x
  3. Step 3: Cross multiply
    236,113.09x = 325,826.55 × 128,680.81
  4. Step 4: Simplify right side
    236,113.09x = 41,927,623,558.94
  5. Step 5: Solve for x
    x = 41,927,623,558.94/236,113.09
  6. Step 6: Final answer
    x = 177,574.33

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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.