Home / 135,996.77-202,628.28-128,357.16

Finding the Fourth Proportional to 135,996.77, 202,628.28 and 128,357.16

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Solution

The fourth proportional to 135,996.77, 202,628.28 and 128,357.16 is: 191,245.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,996.77 : 202,628.28 = 128,357.16 : x
  2. Step 2: Convert to fraction form
    135,996.77/202,628.28 = 128,357.16/x
  3. Step 3: Cross multiply
    135,996.77x = 202,628.28 × 128,357.16
  4. Step 4: Simplify right side
    135,996.77x = 26,008,790,277.97
  5. Step 5: Solve for x
    x = 26,008,790,277.97/135,996.77
  6. Step 6: Final answer
    x = 191,245.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.