Home / 131,116.42-180,766.46-85,716.35

Finding the Fourth Proportional to 131,116.42, 180,766.46 and 85,716.35

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Solution

The fourth proportional to 131,116.42, 180,766.46 and 85,716.35 is: 118,174.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,116.42 : 180,766.46 = 85,716.35 : x
  2. Step 2: Convert to fraction form
    131,116.42/180,766.46 = 85,716.35/x
  3. Step 3: Cross multiply
    131,116.42x = 180,766.46 × 85,716.35
  4. Step 4: Simplify right side
    131,116.42x = 15,494,640,725.04
  5. Step 5: Solve for x
    x = 15,494,640,725.04/131,116.42
  6. Step 6: Final answer
    x = 118,174.68

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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.