Home / 134,786.20-202,179.30-72,578.20

Finding the Fourth Proportional to 134,786.20, 202,179.30 and 72,578.20

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Solution

The fourth proportional to 134,786.20, 202,179.30 and 72,578.20 is: 108,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,786.20 : 202,179.30 = 72,578.20 : x
  2. Step 2: Convert to fraction form
    134,786.20/202,179.30 = 72,578.20/x
  3. Step 3: Cross multiply
    134,786.20x = 202,179.30 × 72,578.20
  4. Step 4: Simplify right side
    134,786.20x = 14,673,809,671.26
  5. Step 5: Solve for x
    x = 14,673,809,671.26/134,786.20
  6. Step 6: Final answer
    x = 108,867.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.