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Finding the Fourth Proportional to 107,679.90, 148,532.10 and 69,425.22

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Solution

The fourth proportional to 107,679.90, 148,532.10 and 69,425.22 is: 95,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,679.90 : 148,532.10 = 69,425.22 : x
  2. Step 2: Convert to fraction form
    107,679.90/148,532.10 = 69,425.22/x
  3. Step 3: Cross multiply
    107,679.90x = 148,532.10 × 69,425.22
  4. Step 4: Simplify right side
    107,679.90x = 10,311,873,719.56
  5. Step 5: Solve for x
    x = 10,311,873,719.56/107,679.90
  6. Step 6: Final answer
    x = 95,764.15

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Why These Related Problems?

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