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Finding the Fourth Proportional to 188,889.06, 260,670.15 and 102,850.50

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Solution

The fourth proportional to 188,889.06, 260,670.15 and 102,850.50 is: 141,935.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,889.06 : 260,670.15 = 102,850.50 : x
  2. Step 2: Convert to fraction form
    188,889.06/260,670.15 = 102,850.50/x
  3. Step 3: Cross multiply
    188,889.06x = 260,670.15 × 102,850.50
  4. Step 4: Simplify right side
    188,889.06x = 26,810,055,262.58
  5. Step 5: Solve for x
    x = 26,810,055,262.58/188,889.06
  6. Step 6: Final answer
    x = 141,935.46

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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.