Home / 105,726.20-158,616.30-74,622.20

Finding the Fourth Proportional to 105,726.20, 158,616.30 and 74,622.20

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Solution

The fourth proportional to 105,726.20, 158,616.30 and 74,622.20 is: 111,952.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,726.20 : 158,616.30 = 74,622.20 : x
  2. Step 2: Convert to fraction form
    105,726.20/158,616.30 = 74,622.20/x
  3. Step 3: Cross multiply
    105,726.20x = 158,616.30 × 74,622.20
  4. Step 4: Simplify right side
    105,726.20x = 11,836,297,261.86
  5. Step 5: Solve for x
    x = 11,836,297,261.86/105,726.20
  6. Step 6: Final answer
    x = 111,952.36

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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.