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Finding the Fourth Proportional to 109,361.52, 150,956.08 and 68,000.88

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Solution

The fourth proportional to 109,361.52, 150,956.08 and 68,000.88 is: 93,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,361.52 : 150,956.08 = 68,000.88 : x
  2. Step 2: Convert to fraction form
    109,361.52/150,956.08 = 68,000.88/x
  3. Step 3: Cross multiply
    109,361.52x = 150,956.08 × 68,000.88
  4. Step 4: Simplify right side
    109,361.52x = 10,265,146,281.35
  5. Step 5: Solve for x
    x = 10,265,146,281.35/109,361.52
  6. Step 6: Final answer
    x = 93,864.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.