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Finding the Third Proportional to 69,303.75 and 152,139.75

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Solution

The third proportional to 69,303.75 and 152,139.75 is: 333,986.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,303.75 : 152,139.75 = 152,139.75 : x
  2. Step 2: Convert to fraction form
    69,303.75/152,139.75 = 152,139.75/x
  3. Step 3: Cross multiply
    69,303.75x = 152,139.75 × 152,139.75
  4. Step 4: Simplify right side
    69,303.75x = 23,146,503,530.06
  5. Step 5: Solve for x
    x = 23,146,503,530.06/69,303.75
  6. Step 6: Final answer
    x = 333,986.31

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.