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Finding the Fourth Proportional to 131,489.70, 197,234.55 and 61,376.10

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Solution

The fourth proportional to 131,489.70, 197,234.55 and 61,376.10 is: 92,064.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,489.70 : 197,234.55 = 61,376.10 : x
  2. Step 2: Convert to fraction form
    131,489.70/197,234.55 = 61,376.10/x
  3. Step 3: Cross multiply
    131,489.70x = 197,234.55 × 61,376.10
  4. Step 4: Simplify right side
    131,489.70x = 12,105,487,464.26
  5. Step 5: Solve for x
    x = 12,105,487,464.26/131,489.70
  6. Step 6: Final answer
    x = 92,064.15

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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.