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Finding the Third Proportional to 66,499.89 and 100,439.68

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Solution

The third proportional to 66,499.89 and 100,439.68 is: 151,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,499.89 : 100,439.68 = 100,439.68 : x
  2. Step 2: Convert to fraction form
    66,499.89/100,439.68 = 100,439.68/x
  3. Step 3: Cross multiply
    66,499.89x = 100,439.68 × 100,439.68
  4. Step 4: Simplify right side
    66,499.89x = 10,088,130,040.41
  5. Step 5: Solve for x
    x = 10,088,130,040.41/66,499.89
  6. Step 6: Final answer
    x = 151,701.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.