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Finding the Third Proportional to 86,472 and 133,602.75

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Solution

The third proportional to 86,472 and 133,602.75 is: 206,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,472 : 133,602.75 = 133,602.75 : x
  2. Step 2: Convert to fraction form
    86,472/133,602.75 = 133,602.75/x
  3. Step 3: Cross multiply
    86,472x = 133,602.75 × 133,602.75
  4. Step 4: Simplify right side
    86,472x = 17,849,694,807.56
  5. Step 5: Solve for x
    x = 17,849,694,807.56/86,472
  6. Step 6: Final answer
    x = 206,421.67

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.