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Finding the Fourth Proportional to 68,847.30, 103,076.55 and 66,903.30

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Solution

The fourth proportional to 68,847.30, 103,076.55 and 66,903.30 is: 100,166.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,847.30 : 103,076.55 = 66,903.30 : x
  2. Step 2: Convert to fraction form
    68,847.30/103,076.55 = 66,903.30/x
  3. Step 3: Cross multiply
    68,847.30x = 103,076.55 × 66,903.30
  4. Step 4: Simplify right side
    68,847.30x = 6,896,161,347.62
  5. Step 5: Solve for x
    x = 6,896,161,347.62/68,847.30
  6. Step 6: Final answer
    x = 100,166.04

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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.