Home / 188,688.17-260,385.39-108,163.14

Finding the Fourth Proportional to 188,688.17, 260,385.39 and 108,163.14

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Solution

The fourth proportional to 188,688.17, 260,385.39 and 108,163.14 is: 149,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,688.17 : 260,385.39 = 108,163.14 : x
  2. Step 2: Convert to fraction form
    188,688.17/260,385.39 = 108,163.14/x
  3. Step 3: Cross multiply
    188,688.17x = 260,385.39 × 108,163.14
  4. Step 4: Simplify right side
    188,688.17x = 28,164,101,392.52
  5. Step 5: Solve for x
    x = 28,164,101,392.52/188,688.17
  6. Step 6: Final answer
    x = 149,262.68

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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.