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Finding the Third Proportional to 74,403.75 and 112,276.50

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Solution

The third proportional to 74,403.75 and 112,276.50 is: 169,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,403.75 : 112,276.50 = 112,276.50 : x
  2. Step 2: Convert to fraction form
    74,403.75/112,276.50 = 112,276.50/x
  3. Step 3: Cross multiply
    74,403.75x = 112,276.50 × 112,276.50
  4. Step 4: Simplify right side
    74,403.75x = 12,606,012,452.25
  5. Step 5: Solve for x
    x = 12,606,012,452.25/74,403.75
  6. Step 6: Final answer
    x = 169,427.11

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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.