Home / 131,546.43-181,491.03-80,505.93

Finding the Fourth Proportional to 131,546.43, 181,491.03 and 80,505.93

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Solution

The fourth proportional to 131,546.43, 181,491.03 and 80,505.93 is: 111,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,546.43 : 181,491.03 = 80,505.93 : x
  2. Step 2: Convert to fraction form
    131,546.43/181,491.03 = 80,505.93/x
  3. Step 3: Cross multiply
    131,546.43x = 181,491.03 × 80,505.93
  4. Step 4: Simplify right side
    131,546.43x = 14,611,104,837.40
  5. Step 5: Solve for x
    x = 14,611,104,837.40/131,546.43
  6. Step 6: Final answer
    x = 111,071.85

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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.