Home / 134,786.25-186,005.03-75,170.25

Finding the Fourth Proportional to 134,786.25, 186,005.03 and 75,170.25

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Solution

The fourth proportional to 134,786.25, 186,005.03 and 75,170.25 is: 103,734.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,786.25 : 186,005.03 = 75,170.25 : x
  2. Step 2: Convert to fraction form
    134,786.25/186,005.03 = 75,170.25/x
  3. Step 3: Cross multiply
    134,786.25x = 186,005.03 × 75,170.25
  4. Step 4: Simplify right side
    134,786.25x = 13,982,044,230.51
  5. Step 5: Solve for x
    x = 13,982,044,230.51/134,786.25
  6. Step 6: Final answer
    x = 103,734.95

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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.