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Finding the Third Proportional to 133,040 and 157,643

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Solution

The third proportional to 133,040 and 157,643 is: 186,795.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,040 : 157,643 = 157,643 : x
  2. Step 2: Convert to fraction form
    133,040/157,643 = 157,643/x
  3. Step 3: Cross multiply
    133,040x = 157,643 × 157,643
  4. Step 4: Simplify right side
    133,040x = 24,851,315,449
  5. Step 5: Solve for x
    x = 24,851,315,449/133,040
  6. Step 6: Final answer
    x = 186,795.82

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.