Home / 188,023.26-259,472.08-103,142.14

Finding the Fourth Proportional to 188,023.26, 259,472.08 and 103,142.14

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Solution

The fourth proportional to 188,023.26, 259,472.08 and 103,142.14 is: 142,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,023.26 : 259,472.08 = 103,142.14 : x
  2. Step 2: Convert to fraction form
    188,023.26/259,472.08 = 103,142.14/x
  3. Step 3: Cross multiply
    188,023.26x = 259,472.08 × 103,142.14
  4. Step 4: Simplify right side
    188,023.26x = 26,762,505,601.45
  5. Step 5: Solve for x
    x = 26,762,505,601.45/188,023.26
  6. Step 6: Final answer
    x = 142,336.14

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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.