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Finding the Fourth Proportional to 107,707.87, 148,540.10 and 67,425.30

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Solution

The fourth proportional to 107,707.87, 148,540.10 and 67,425.30 is: 92,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,707.87 : 148,540.10 = 67,425.30 : x
  2. Step 2: Convert to fraction form
    107,707.87/148,540.10 = 67,425.30/x
  3. Step 3: Cross multiply
    107,707.87x = 148,540.10 × 67,425.30
  4. Step 4: Simplify right side
    107,707.87x = 10,015,360,467.40
  5. Step 5: Solve for x
    x = 10,015,360,467.40/107,707.87
  6. Step 6: Final answer
    x = 92,986.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.