Home / 131,979.56-197,999.40-43,231.10

Finding the Fourth Proportional to 131,979.56, 197,999.40 and 43,231.10

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Solution

The fourth proportional to 131,979.56, 197,999.40 and 43,231.10 is: 64,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,979.56 : 197,999.40 = 43,231.10 : x
  2. Step 2: Convert to fraction form
    131,979.56/197,999.40 = 43,231.10/x
  3. Step 3: Cross multiply
    131,979.56x = 197,999.40 × 43,231.10
  4. Step 4: Simplify right side
    131,979.56x = 8,559,731,861.34
  5. Step 5: Solve for x
    x = 8,559,731,861.34/131,979.56
  6. Step 6: Final answer
    x = 64,856.50

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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.