Home / 131,816.81-197,758.94-38,322.56

Finding the Fourth Proportional to 131,816.81, 197,758.94 and 38,322.56

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Solution

The fourth proportional to 131,816.81, 197,758.94 and 38,322.56 is: 57,493.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,816.81 : 197,758.94 = 38,322.56 : x
  2. Step 2: Convert to fraction form
    131,816.81/197,758.94 = 38,322.56/x
  3. Step 3: Cross multiply
    131,816.81x = 197,758.94 × 38,322.56
  4. Step 4: Simplify right side
    131,816.81x = 7,578,629,146.47
  5. Step 5: Solve for x
    x = 7,578,629,146.47/131,816.81
  6. Step 6: Final answer
    x = 57,493.65

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1.5x scale

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.