Home / 134,627.36-185,634-86,165.84

Finding the Fourth Proportional to 134,627.36, 185,634 and 86,165.84

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Solution

The fourth proportional to 134,627.36, 185,634 and 86,165.84 is: 118,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,627.36 : 185,634 = 86,165.84 : x
  2. Step 2: Convert to fraction form
    134,627.36/185,634 = 86,165.84/x
  3. Step 3: Cross multiply
    134,627.36x = 185,634 × 86,165.84
  4. Step 4: Simplify right side
    134,627.36x = 15,995,309,542.56
  5. Step 5: Solve for x
    x = 15,995,309,542.56/134,627.36
  6. Step 6: Final answer
    x = 118,811.73

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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.