Home / 131,277.20-196,944.60-42,515.60

Finding the Fourth Proportional to 131,277.20, 196,944.60 and 42,515.60

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Solution

The fourth proportional to 131,277.20, 196,944.60 and 42,515.60 is: 63,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,277.20 : 196,944.60 = 42,515.60 : x
  2. Step 2: Convert to fraction form
    131,277.20/196,944.60 = 42,515.60/x
  3. Step 3: Cross multiply
    131,277.20x = 196,944.60 × 42,515.60
  4. Step 4: Simplify right side
    131,277.20x = 8,373,217,835.76
  5. Step 5: Solve for x
    x = 8,373,217,835.76/131,277.20
  6. Step 6: Final answer
    x = 63,782.73

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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.