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Finding the Fourth Proportional to 68,904.84, 103,356.72 and 22,157.76

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Solution

The fourth proportional to 68,904.84, 103,356.72 and 22,157.76 is: 33,236.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,904.84 : 103,356.72 = 22,157.76 : x
  2. Step 2: Convert to fraction form
    68,904.84/103,356.72 = 22,157.76/x
  3. Step 3: Cross multiply
    68,904.84x = 103,356.72 × 22,157.76
  4. Step 4: Simplify right side
    68,904.84x = 2,290,153,396.15
  5. Step 5: Solve for x
    x = 2,290,153,396.15/68,904.84
  6. Step 6: Final answer
    x = 33,236.47

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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.