Home / 148,120.68-204,406.20-81,052.68

Finding the Fourth Proportional to 148,120.68, 204,406.20 and 81,052.68

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Solution

The fourth proportional to 148,120.68, 204,406.20 and 81,052.68 is: 111,852.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,120.68 : 204,406.20 = 81,052.68 : x
  2. Step 2: Convert to fraction form
    148,120.68/204,406.20 = 81,052.68/x
  3. Step 3: Cross multiply
    148,120.68x = 204,406.20 × 81,052.68
  4. Step 4: Simplify right side
    148,120.68x = 16,567,670,318.62
  5. Step 5: Solve for x
    x = 16,567,670,318.62/148,120.68
  6. Step 6: Final answer
    x = 111,852.51

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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.