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Finding the Fourth Proportional to 102,737.56, 154,137.84 and 92,140.60

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Solution

The fourth proportional to 102,737.56, 154,137.84 and 92,140.60 is: 138,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,737.56 : 154,137.84 = 92,140.60 : x
  2. Step 2: Convert to fraction form
    102,737.56/154,137.84 = 92,140.60/x
  3. Step 3: Cross multiply
    102,737.56x = 154,137.84 × 92,140.60
  4. Step 4: Simplify right side
    102,737.56x = 14,202,353,060.30
  5. Step 5: Solve for x
    x = 14,202,353,060.30/102,737.56
  6. Step 6: Final answer
    x = 138,239.15

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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.