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Finding the Fourth Proportional to 162,786.80, 243,985.80 and 68,016.80

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Solution

The fourth proportional to 162,786.80, 243,985.80 and 68,016.80 is: 101,943.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,786.80 : 243,985.80 = 68,016.80 : x
  2. Step 2: Convert to fraction form
    162,786.80/243,985.80 = 68,016.80/x
  3. Step 3: Cross multiply
    162,786.80x = 243,985.80 × 68,016.80
  4. Step 4: Simplify right side
    162,786.80x = 16,595,133,361.44
  5. Step 5: Solve for x
    x = 16,595,133,361.44/162,786.80
  6. Step 6: Final answer
    x = 101,943.97

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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.