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Finding the Third Proportional to 75,458 and 102,114.50

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Solution

The third proportional to 75,458 and 102,114.50 is: 138,187.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,458 : 102,114.50 = 102,114.50 : x
  2. Step 2: Convert to fraction form
    75,458/102,114.50 = 102,114.50/x
  3. Step 3: Cross multiply
    75,458x = 102,114.50 × 102,114.50
  4. Step 4: Simplify right side
    75,458x = 10,427,371,110.25
  5. Step 5: Solve for x
    x = 10,427,371,110.25/75,458
  6. Step 6: Final answer
    x = 138,187.75

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.