Home / 188,122.78-259,603.59-103,237.66

Finding the Fourth Proportional to 188,122.78, 259,603.59 and 103,237.66

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Solution

The fourth proportional to 188,122.78, 259,603.59 and 103,237.66 is: 142,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,122.78 : 259,603.59 = 103,237.66 : x
  2. Step 2: Convert to fraction form
    188,122.78/259,603.59 = 103,237.66/x
  3. Step 3: Cross multiply
    188,122.78x = 259,603.59 × 103,237.66
  4. Step 4: Simplify right side
    188,122.78x = 26,800,867,159.20
  5. Step 5: Solve for x
    x = 26,800,867,159.20/188,122.78
  6. Step 6: Final answer
    x = 142,464.76

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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.