Home / 154,839.36-213,667.56-91,163.64

Finding the Fourth Proportional to 154,839.36, 213,667.56 and 91,163.64

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Solution

The fourth proportional to 154,839.36, 213,667.56 and 91,163.64 is: 125,799.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,839.36 : 213,667.56 = 91,163.64 : x
  2. Step 2: Convert to fraction form
    154,839.36/213,667.56 = 91,163.64/x
  3. Step 3: Cross multiply
    154,839.36x = 213,667.56 × 91,163.64
  4. Step 4: Simplify right side
    154,839.36x = 19,478,712,519.52
  5. Step 5: Solve for x
    x = 19,478,712,519.52/154,839.36
  6. Step 6: Final answer
    x = 125,799.49

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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.