Home / 131,936.20-197,612.70-53,009.80

Finding the Fourth Proportional to 131,936.20, 197,612.70 and 53,009.80

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Solution

The fourth proportional to 131,936.20, 197,612.70 and 53,009.80 is: 79,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,936.20 : 197,612.70 = 53,009.80 : x
  2. Step 2: Convert to fraction form
    131,936.20/197,612.70 = 53,009.80/x
  3. Step 3: Cross multiply
    131,936.20x = 197,612.70 × 53,009.80
  4. Step 4: Simplify right side
    131,936.20x = 10,475,409,704.46
  5. Step 5: Solve for x
    x = 10,475,409,704.46/131,936.20
  6. Step 6: Final answer
    x = 79,397.54

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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.