Home / 131,439.20-197,101.20-52,527.20

Finding the Fourth Proportional to 131,439.20, 197,101.20 and 52,527.20

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Solution

The fourth proportional to 131,439.20, 197,101.20 and 52,527.20 is: 78,767.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,439.20 : 197,101.20 = 52,527.20 : x
  2. Step 2: Convert to fraction form
    131,439.20/197,101.20 = 52,527.20/x
  3. Step 3: Cross multiply
    131,439.20x = 197,101.20 × 52,527.20
  4. Step 4: Simplify right side
    131,439.20x = 10,353,174,152.64
  5. Step 5: Solve for x
    x = 10,353,174,152.64/131,439.20
  6. Step 6: Final answer
    x = 78,767.78

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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.