Home / 131,784.20-197,546.70-65,234.60

Finding the Fourth Proportional to 131,784.20, 197,546.70 and 65,234.60

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Solution

The fourth proportional to 131,784.20, 197,546.70 and 65,234.60 is: 97,787.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,784.20 : 197,546.70 = 65,234.60 : x
  2. Step 2: Convert to fraction form
    131,784.20/197,546.70 = 65,234.60/x
  3. Step 3: Cross multiply
    131,784.20x = 197,546.70 × 65,234.60
  4. Step 4: Simplify right side
    131,784.20x = 12,886,879,955.82
  5. Step 5: Solve for x
    x = 12,886,879,955.82/131,784.20
  6. Step 6: Final answer
    x = 97,787.75

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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.