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Finding the Third Proportional to 68,237.75 and 148,130.50

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Solution

The third proportional to 68,237.75 and 148,130.50 is: 321,561.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,237.75 : 148,130.50 = 148,130.50 : x
  2. Step 2: Convert to fraction form
    68,237.75/148,130.50 = 148,130.50/x
  3. Step 3: Cross multiply
    68,237.75x = 148,130.50 × 148,130.50
  4. Step 4: Simplify right side
    68,237.75x = 21,942,645,030.25
  5. Step 5: Solve for x
    x = 21,942,645,030.25/68,237.75
  6. Step 6: Final answer
    x = 321,561.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.