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Finding the Fourth Proportional to 100,737.10, 151,105.65 and 30,607.30

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Solution

The fourth proportional to 100,737.10, 151,105.65 and 30,607.30 is: 45,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,737.10 : 151,105.65 = 30,607.30 : x
  2. Step 2: Convert to fraction form
    100,737.10/151,105.65 = 30,607.30/x
  3. Step 3: Cross multiply
    100,737.10x = 151,105.65 × 30,607.30
  4. Step 4: Simplify right side
    100,737.10x = 4,624,935,961.25
  5. Step 5: Solve for x
    x = 4,624,935,961.25/100,737.10
  6. Step 6: Final answer
    x = 45,910.95

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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.