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Finding the Third Proportional to 112,642 and 157,480

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Solution

The third proportional to 112,642 and 157,480 is: 220,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,642 : 157,480 = 157,480 : x
  2. Step 2: Convert to fraction form
    112,642/157,480 = 157,480/x
  3. Step 3: Cross multiply
    112,642x = 157,480 × 157,480
  4. Step 4: Simplify right side
    112,642x = 24,799,950,400
  5. Step 5: Solve for x
    x = 24,799,950,400/112,642
  6. Step 6: Final answer
    x = 220,166.11

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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.