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Finding the Fourth Proportional to 147,198.92, 220,650.72 and 68,368.50

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Solution

The fourth proportional to 147,198.92, 220,650.72 and 68,368.50 is: 102,484.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,198.92 : 220,650.72 = 68,368.50 : x
  2. Step 2: Convert to fraction form
    147,198.92/220,650.72 = 68,368.50/x
  3. Step 3: Cross multiply
    147,198.92x = 220,650.72 × 68,368.50
  4. Step 4: Simplify right side
    147,198.92x = 15,085,558,750.32
  5. Step 5: Solve for x
    x = 15,085,558,750.32/147,198.92
  6. Step 6: Final answer
    x = 102,484.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.