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Finding the Fourth Proportional to 146,963.08, 220,410.78 and 72,008.20

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Solution

The fourth proportional to 146,963.08, 220,410.78 and 72,008.20 is: 107,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,963.08 : 220,410.78 = 72,008.20 : x
  2. Step 2: Convert to fraction form
    146,963.08/220,410.78 = 72,008.20/x
  3. Step 3: Cross multiply
    146,963.08x = 220,410.78 × 72,008.20
  4. Step 4: Simplify right side
    146,963.08x = 15,871,383,528.40
  5. Step 5: Solve for x
    x = 15,871,383,528.40/146,963.08
  6. Step 6: Final answer
    x = 107,995.72

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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.