Home / 131,489.60-197,453.10-72,367.70

Finding the Fourth Proportional to 131,489.60, 197,453.10 and 72,367.70

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Solution

The fourth proportional to 131,489.60, 197,453.10 and 72,367.70 is: 108,671.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,489.60 : 197,453.10 = 72,367.70 : x
  2. Step 2: Convert to fraction form
    131,489.60/197,453.10 = 72,367.70/x
  3. Step 3: Cross multiply
    131,489.60x = 197,453.10 × 72,367.70
  4. Step 4: Simplify right side
    131,489.60x = 14,289,226,704.87
  5. Step 5: Solve for x
    x = 14,289,226,704.87/131,489.60
  6. Step 6: Final answer
    x = 108,671.92

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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.