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Finding the Fourth Proportional to 188,382.60, 259,972.92 and 103,501.92

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Solution

The fourth proportional to 188,382.60, 259,972.92 and 103,501.92 is: 142,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,382.60 : 259,972.92 = 103,501.92 : x
  2. Step 2: Convert to fraction form
    188,382.60/259,972.92 = 103,501.92/x
  3. Step 3: Cross multiply
    188,382.60x = 259,972.92 × 103,501.92
  4. Step 4: Simplify right side
    188,382.60x = 26,907,696,368.01
  5. Step 5: Solve for x
    x = 26,907,696,368.01/188,382.60
  6. Step 6: Final answer
    x = 142,835.36

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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.