Home / 131,551.43-181,498.05-80,511.03

Finding the Fourth Proportional to 131,551.43, 181,498.05 and 80,511.03

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Solution

The fourth proportional to 131,551.43, 181,498.05 and 80,511.03 is: 111,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,551.43 : 181,498.05 = 80,511.03 : x
  2. Step 2: Convert to fraction form
    131,551.43/181,498.05 = 80,511.03/x
  3. Step 3: Cross multiply
    131,551.43x = 181,498.05 × 80,511.03
  4. Step 4: Simplify right side
    131,551.43x = 14,612,594,948.49
  5. Step 5: Solve for x
    x = 14,612,594,948.49/131,551.43
  6. Step 6: Final answer
    x = 111,078.96

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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.