Home / 188,519.10-260,149.75-103,635.56

Finding the Fourth Proportional to 188,519.10, 260,149.75 and 103,635.56

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Solution

The fourth proportional to 188,519.10, 260,149.75 and 103,635.56 is: 143,013.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,519.10 : 260,149.75 = 103,635.56 : x
  2. Step 2: Convert to fraction form
    188,519.10/260,149.75 = 103,635.56/x
  3. Step 3: Cross multiply
    188,519.10x = 260,149.75 × 103,635.56
  4. Step 4: Simplify right side
    188,519.10x = 26,960,765,025.11
  5. Step 5: Solve for x
    x = 26,960,765,025.11/188,519.10
  6. Step 6: Final answer
    x = 143,013.44

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1.5x scale

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.