Home / 130,586.94-180,116.62-119,865.85

Finding the Fourth Proportional to 130,586.94, 180,116.62 and 119,865.85

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Solution

The fourth proportional to 130,586.94, 180,116.62 and 119,865.85 is: 165,329.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,586.94 : 180,116.62 = 119,865.85 : x
  2. Step 2: Convert to fraction form
    130,586.94/180,116.62 = 119,865.85/x
  3. Step 3: Cross multiply
    130,586.94x = 180,116.62 × 119,865.85
  4. Step 4: Simplify right side
    130,586.94x = 21,589,831,755.43
  5. Step 5: Solve for x
    x = 21,589,831,755.43/130,586.94
  6. Step 6: Final answer
    x = 165,329.18

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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.