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Finding the Third Proportional to 69,511.50 and 143,947.13

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Solution

The third proportional to 69,511.50 and 143,947.13 is: 298,091.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,511.50 : 143,947.13 = 143,947.13 : x
  2. Step 2: Convert to fraction form
    69,511.50/143,947.13 = 143,947.13/x
  3. Step 3: Cross multiply
    69,511.50x = 143,947.13 × 143,947.13
  4. Step 4: Simplify right side
    69,511.50x = 20,720,774,795.77
  5. Step 5: Solve for x
    x = 20,720,774,795.77/69,511.50
  6. Step 6: Final answer
    x = 298,091.32

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.