Home / 188,216.19-259,738.74-103,338.72

Finding the Fourth Proportional to 188,216.19, 259,738.74 and 103,338.72

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Solution

The fourth proportional to 188,216.19, 259,738.74 and 103,338.72 is: 142,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,216.19 : 259,738.74 = 103,338.72 : x
  2. Step 2: Convert to fraction form
    188,216.19/259,738.74 = 103,338.72/x
  3. Step 3: Cross multiply
    188,216.19x = 259,738.74 × 103,338.72
  4. Step 4: Simplify right side
    188,216.19x = 26,841,068,926.01
  5. Step 5: Solve for x
    x = 26,841,068,926.01/188,216.19
  6. Step 6: Final answer
    x = 142,607.65

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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.