Home / 107,390.35-148,132.42-69,137.29

Finding the Fourth Proportional to 107,390.35, 148,132.42 and 69,137.29

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Solution

The fourth proportional to 107,390.35, 148,132.42 and 69,137.29 is: 95,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,390.35 : 148,132.42 = 69,137.29 : x
  2. Step 2: Convert to fraction form
    107,390.35/148,132.42 = 69,137.29/x
  3. Step 3: Cross multiply
    107,390.35x = 148,132.42 × 69,137.29
  4. Step 4: Simplify right side
    107,390.35x = 10,241,474,079.94
  5. Step 5: Solve for x
    x = 10,241,474,079.94/107,390.35
  6. Step 6: Final answer
    x = 95,366.80

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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.