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Finding the Fourth Proportional to 131,471.70, 197,207.55 and 61,358.10

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Solution

The fourth proportional to 131,471.70, 197,207.55 and 61,358.10 is: 92,037.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471.70 : 197,207.55 = 61,358.10 : x
  2. Step 2: Convert to fraction form
    131,471.70/197,207.55 = 61,358.10/x
  3. Step 3: Cross multiply
    131,471.70x = 197,207.55 × 61,358.10
  4. Step 4: Simplify right side
    131,471.70x = 12,100,280,573.66
  5. Step 5: Solve for x
    x = 12,100,280,573.66/131,471.70
  6. Step 6: Final answer
    x = 92,037.15

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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.