Home / 188,518.18-260,138.37-103,633.42

Finding the Fourth Proportional to 188,518.18, 260,138.37 and 103,633.42

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Solution

The fourth proportional to 188,518.18, 260,138.37 and 103,633.42 is: 143,004.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,518.18 : 260,138.37 = 103,633.42 : x
  2. Step 2: Convert to fraction form
    188,518.18/260,138.37 = 103,633.42/x
  3. Step 3: Cross multiply
    188,518.18x = 260,138.37 × 103,633.42
  4. Step 4: Simplify right side
    188,518.18x = 26,959,028,956.33
  5. Step 5: Solve for x
    x = 26,959,028,956.33/188,518.18
  6. Step 6: Final answer
    x = 143,004.93

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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.