Home / 102,760.24-154,205.16-40,422.64

Finding the Fourth Proportional to 102,760.24, 154,205.16 and 40,422.64

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Solution

The fourth proportional to 102,760.24, 154,205.16 and 40,422.64 is: 60,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,760.24 : 154,205.16 = 40,422.64 : x
  2. Step 2: Convert to fraction form
    102,760.24/154,205.16 = 40,422.64/x
  3. Step 3: Cross multiply
    102,760.24x = 154,205.16 × 40,422.64
  4. Step 4: Simplify right side
    102,760.24x = 6,233,379,668.82
  5. Step 5: Solve for x
    x = 6,233,379,668.82/102,760.24
  6. Step 6: Final answer
    x = 60,659.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.