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Finding the Third Proportional to 125,145 and 190,815.75

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Solution

The third proportional to 125,145 and 190,815.75 is: 290,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,145 : 190,815.75 = 190,815.75 : x
  2. Step 2: Convert to fraction form
    125,145/190,815.75 = 190,815.75/x
  3. Step 3: Cross multiply
    125,145x = 190,815.75 × 190,815.75
  4. Step 4: Simplify right side
    125,145x = 36,410,650,448.06
  5. Step 5: Solve for x
    x = 36,410,650,448.06/125,145
  6. Step 6: Final answer
    x = 290,947.70

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.