Home / 131,114.85-180,872.98-82,776.68

Finding the Fourth Proportional to 131,114.85, 180,872.98 and 82,776.68

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Solution

The fourth proportional to 131,114.85, 180,872.98 and 82,776.68 is: 114,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,114.85 : 180,872.98 = 82,776.68 : x
  2. Step 2: Convert to fraction form
    131,114.85/180,872.98 = 82,776.68/x
  3. Step 3: Cross multiply
    131,114.85x = 180,872.98 × 82,776.68
  4. Step 4: Simplify right side
    131,114.85x = 14,972,064,786.11
  5. Step 5: Solve for x
    x = 14,972,064,786.11/131,114.85
  6. Step 6: Final answer
    x = 114,190.46

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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.