Home / 131,803.66-181,933.41-80,120.58

Finding the Fourth Proportional to 131,803.66, 181,933.41 and 80,120.58

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Solution

The fourth proportional to 131,803.66, 181,933.41 and 80,120.58 is: 110,593.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,803.66 : 181,933.41 = 80,120.58 : x
  2. Step 2: Convert to fraction form
    131,803.66/181,933.41 = 80,120.58/x
  3. Step 3: Cross multiply
    131,803.66x = 181,933.41 × 80,120.58
  4. Step 4: Simplify right side
    131,803.66x = 14,576,610,330.58
  5. Step 5: Solve for x
    x = 14,576,610,330.58/131,803.66
  6. Step 6: Final answer
    x = 110,593.37

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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.