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Finding the Third Proportional to 77,984.50 and 118,077.50

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Solution

The third proportional to 77,984.50 and 118,077.50 is: 178,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,984.50 : 118,077.50 = 118,077.50 : x
  2. Step 2: Convert to fraction form
    77,984.50/118,077.50 = 118,077.50/x
  3. Step 3: Cross multiply
    77,984.50x = 118,077.50 × 118,077.50
  4. Step 4: Simplify right side
    77,984.50x = 13,942,296,006.25
  5. Step 5: Solve for x
    x = 13,942,296,006.25/77,984.50
  6. Step 6: Final answer
    x = 178,782.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.