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Finding the Third Proportional to 78,927 and 120,360

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Solution

The third proportional to 78,927 and 120,360 is: 183,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,927 : 120,360 = 120,360 : x
  2. Step 2: Convert to fraction form
    78,927/120,360 = 120,360/x
  3. Step 3: Cross multiply
    78,927x = 120,360 × 120,360
  4. Step 4: Simplify right side
    78,927x = 14,486,529,600
  5. Step 5: Solve for x
    x = 14,486,529,600/78,927
  6. Step 6: Final answer
    x = 183,543.40

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.