Home / 188,905.40-260,689.05-102,863.05

Finding the Fourth Proportional to 188,905.40, 260,689.05 and 102,863.05

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Solution

The fourth proportional to 188,905.40, 260,689.05 and 102,863.05 is: 141,950.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,905.40 : 260,689.05 = 102,863.05 : x
  2. Step 2: Convert to fraction form
    188,905.40/260,689.05 = 102,863.05/x
  3. Step 3: Cross multiply
    188,905.40x = 260,689.05 × 102,863.05
  4. Step 4: Simplify right side
    188,905.40x = 26,815,270,784.60
  5. Step 5: Solve for x
    x = 26,815,270,784.60/188,905.40
  6. Step 6: Final answer
    x = 141,950.79

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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.