Home / 188,558.28-260,211.39-103,680.80

Finding the Fourth Proportional to 188,558.28, 260,211.39 and 103,680.80

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Solution

The fourth proportional to 188,558.28, 260,211.39 and 103,680.80 is: 143,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,558.28 : 260,211.39 = 103,680.80 : x
  2. Step 2: Convert to fraction form
    188,558.28/260,211.39 = 103,680.80/x
  3. Step 3: Cross multiply
    188,558.28x = 260,211.39 × 103,680.80
  4. Step 4: Simplify right side
    188,558.28x = 26,978,925,084.31
  5. Step 5: Solve for x
    x = 26,978,925,084.31/188,558.28
  6. Step 6: Final answer
    x = 143,080.03

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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.