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Finding the Third Proportional to 105,271.50 and 161,811.75

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Solution

The third proportional to 105,271.50 and 161,811.75 is: 248,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,271.50 : 161,811.75 = 161,811.75 : x
  2. Step 2: Convert to fraction form
    105,271.50/161,811.75 = 161,811.75/x
  3. Step 3: Cross multiply
    105,271.50x = 161,811.75 × 161,811.75
  4. Step 4: Simplify right side
    105,271.50x = 26,183,042,438.06
  5. Step 5: Solve for x
    x = 26,183,042,438.06/105,271.50
  6. Step 6: Final answer
    x = 248,719.19

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.