Home / 131,476.23-181,396.82-80,435.75

Finding the Fourth Proportional to 131,476.23, 181,396.82 and 80,435.75

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Solution

The fourth proportional to 131,476.23, 181,396.82 and 80,435.75 is: 110,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,476.23 : 181,396.82 = 80,435.75 : x
  2. Step 2: Convert to fraction form
    131,476.23/181,396.82 = 80,435.75/x
  3. Step 3: Cross multiply
    131,476.23x = 181,396.82 × 80,435.75
  4. Step 4: Simplify right side
    131,476.23x = 14,590,790,017.97
  5. Step 5: Solve for x
    x = 14,590,790,017.97/131,476.23
  6. Step 6: Final answer
    x = 110,976.64

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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.