Home / 188,022.75-259,471.40-103,140.02

Finding the Fourth Proportional to 188,022.75, 259,471.40 and 103,140.02

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Solution

The fourth proportional to 188,022.75, 259,471.40 and 103,140.02 is: 142,333.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,022.75 : 259,471.40 = 103,140.02 : x
  2. Step 2: Convert to fraction form
    188,022.75/259,471.40 = 103,140.02/x
  3. Step 3: Cross multiply
    188,022.75x = 259,471.40 × 103,140.02
  4. Step 4: Simplify right side
    188,022.75x = 26,761,883,572.37
  5. Step 5: Solve for x
    x = 26,761,883,572.37/188,022.75
  6. Step 6: Final answer
    x = 142,333.22

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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.