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Finding the Third Proportional to 74,992.50 and 105,485.63

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Solution

The third proportional to 74,992.50 and 105,485.63 is: 148,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,992.50 : 105,485.63 = 105,485.63 : x
  2. Step 2: Convert to fraction form
    74,992.50/105,485.63 = 105,485.63/x
  3. Step 3: Cross multiply
    74,992.50x = 105,485.63 × 105,485.63
  4. Step 4: Simplify right side
    74,992.50x = 11,127,217,081.64
  5. Step 5: Solve for x
    x = 11,127,217,081.64/74,992.50
  6. Step 6: Final answer
    x = 148,377.73

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.