Home / 131,491.30-197,285.55-42,747.70

Finding the Fourth Proportional to 131,491.30, 197,285.55 and 42,747.70

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Solution

The fourth proportional to 131,491.30, 197,285.55 and 42,747.70 is: 64,137.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,491.30 : 197,285.55 = 42,747.70 : x
  2. Step 2: Convert to fraction form
    131,491.30/197,285.55 = 42,747.70/x
  3. Step 3: Cross multiply
    131,491.30x = 197,285.55 × 42,747.70
  4. Step 4: Simplify right side
    131,491.30x = 8,433,503,505.74
  5. Step 5: Solve for x
    x = 8,433,503,505.74/131,491.30
  6. Step 6: Final answer
    x = 64,137.35

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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.