Home / 188,022-259,470.36-103,139.27

Finding the Fourth Proportional to 188,022, 259,470.36 and 103,139.27

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Solution

The fourth proportional to 188,022, 259,470.36 and 103,139.27 is: 142,332.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,022 : 259,470.36 = 103,139.27 : x
  2. Step 2: Convert to fraction form
    188,022/259,470.36 = 103,139.27/x
  3. Step 3: Cross multiply
    188,022x = 259,470.36 × 103,139.27
  4. Step 4: Simplify right side
    188,022x = 26,761,582,219.69
  5. Step 5: Solve for x
    x = 26,761,582,219.69/188,022
  6. Step 6: Final answer
    x = 142,332.19

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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.