Home / 131,239.56-196,890.70-42,493.16

Finding the Fourth Proportional to 131,239.56, 196,890.70 and 42,493.16

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Solution

The fourth proportional to 131,239.56, 196,890.70 and 42,493.16 is: 63,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,239.56 : 196,890.70 = 42,493.16 : x
  2. Step 2: Convert to fraction form
    131,239.56/196,890.70 = 42,493.16/x
  3. Step 3: Cross multiply
    131,239.56x = 196,890.70 × 42,493.16
  4. Step 4: Simplify right side
    131,239.56x = 8,366,508,403.61
  5. Step 5: Solve for x
    x = 8,366,508,403.61/131,239.56
  6. Step 6: Final answer
    x = 63,749.90

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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.