Home / 130,680.66-180,336.92-73,321.04

Finding the Fourth Proportional to 130,680.66, 180,336.92 and 73,321.04

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Solution

The fourth proportional to 130,680.66, 180,336.92 and 73,321.04 is: 101,181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,680.66 : 180,336.92 = 73,321.04 : x
  2. Step 2: Convert to fraction form
    130,680.66/180,336.92 = 73,321.04/x
  3. Step 3: Cross multiply
    130,680.66x = 180,336.92 × 73,321.04
  4. Step 4: Simplify right side
    130,680.66x = 13,222,490,524.80
  5. Step 5: Solve for x
    x = 13,222,490,524.80/130,680.66
  6. Step 6: Final answer
    x = 101,181.69

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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.