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Finding the Third Proportional to 77,020.88 and 103,021.88

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Solution

The third proportional to 77,020.88 and 103,021.88 is: 137,800.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,020.88 : 103,021.88 = 103,021.88 : x
  2. Step 2: Convert to fraction form
    77,020.88/103,021.88 = 103,021.88/x
  3. Step 3: Cross multiply
    77,020.88x = 103,021.88 × 103,021.88
  4. Step 4: Simplify right side
    77,020.88x = 10,613,506,728.52
  5. Step 5: Solve for x
    x = 10,613,506,728.52/77,020.88
  6. Step 6: Final answer
    x = 137,800.39

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.