Home / 188,118.12-259,608.06-103,238.22

Finding the Fourth Proportional to 188,118.12, 259,608.06 and 103,238.22

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Solution

The fourth proportional to 188,118.12, 259,608.06 and 103,238.22 is: 142,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,118.12 : 259,608.06 = 103,238.22 : x
  2. Step 2: Convert to fraction form
    188,118.12/259,608.06 = 103,238.22/x
  3. Step 3: Cross multiply
    188,118.12x = 259,608.06 × 103,238.22
  4. Step 4: Simplify right side
    188,118.12x = 26,801,474,012.05
  5. Step 5: Solve for x
    x = 26,801,474,012.05/188,118.12
  6. Step 6: Final answer
    x = 142,471.52

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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.