Home / 131,551.74-181,498.41-80,511.30

Finding the Fourth Proportional to 131,551.74, 181,498.41 and 80,511.30

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Solution

The fourth proportional to 131,551.74, 181,498.41 and 80,511.30 is: 111,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,551.74 : 181,498.41 = 80,511.30 : x
  2. Step 2: Convert to fraction form
    131,551.74/181,498.41 = 80,511.30/x
  3. Step 3: Cross multiply
    131,551.74x = 181,498.41 × 80,511.30
  4. Step 4: Simplify right side
    131,551.74x = 14,612,672,937.03
  5. Step 5: Solve for x
    x = 14,612,672,937.03/131,551.74
  6. Step 6: Final answer
    x = 111,079.28

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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.