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Finding the Fourth Proportional to 105,817.87, 146,035.22 and 69,945.67

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Solution

The fourth proportional to 105,817.87, 146,035.22 and 69,945.67 is: 96,529.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,817.87 : 146,035.22 = 69,945.67 : x
  2. Step 2: Convert to fraction form
    105,817.87/146,035.22 = 69,945.67/x
  3. Step 3: Cross multiply
    105,817.87x = 146,035.22 × 69,945.67
  4. Step 4: Simplify right side
    105,817.87x = 10,214,530,853.98
  5. Step 5: Solve for x
    x = 10,214,530,853.98/105,817.87
  6. Step 6: Final answer
    x = 96,529.36

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1.5x scale

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.