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Finding the Third Proportional to 121,059.56 and 142,929.56

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Solution

The third proportional to 121,059.56 and 142,929.56 is: 168,750.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,059.56 : 142,929.56 = 142,929.56 : x
  2. Step 2: Convert to fraction form
    121,059.56/142,929.56 = 142,929.56/x
  3. Step 3: Cross multiply
    121,059.56x = 142,929.56 × 142,929.56
  4. Step 4: Simplify right side
    121,059.56x = 20,428,859,836.44
  5. Step 5: Solve for x
    x = 20,428,859,836.44/121,059.56
  6. Step 6: Final answer
    x = 168,750.48

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.