Home / 131,819.56-181,923.98-75,239.44

Finding the Fourth Proportional to 131,819.56, 181,923.98 and 75,239.44

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Solution

The fourth proportional to 131,819.56, 181,923.98 and 75,239.44 is: 103,837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,819.56 : 181,923.98 = 75,239.44 : x
  2. Step 2: Convert to fraction form
    131,819.56/181,923.98 = 75,239.44/x
  3. Step 3: Cross multiply
    131,819.56x = 181,923.98 × 75,239.44
  4. Step 4: Simplify right side
    131,819.56x = 13,687,858,377.77
  5. Step 5: Solve for x
    x = 13,687,858,377.77/131,819.56
  6. Step 6: Final answer
    x = 103,837.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.