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Finding the Third Proportional to 112,645 and 157,485

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Solution

The third proportional to 112,645 and 157,485 is: 220,174.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,645 : 157,485 = 157,485 : x
  2. Step 2: Convert to fraction form
    112,645/157,485 = 157,485/x
  3. Step 3: Cross multiply
    112,645x = 157,485 × 157,485
  4. Step 4: Simplify right side
    112,645x = 24,801,525,225
  5. Step 5: Solve for x
    x = 24,801,525,225/112,645
  6. Step 6: Final answer
    x = 220,174.22

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.