Home / 111,786.24-154,186.90-75,913.98

Finding the Fourth Proportional to 111,786.24, 154,186.90 and 75,913.98

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Solution

The fourth proportional to 111,786.24, 154,186.90 and 75,913.98 is: 104,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,786.24 : 154,186.90 = 75,913.98 : x
  2. Step 2: Convert to fraction form
    111,786.24/154,186.90 = 75,913.98/x
  3. Step 3: Cross multiply
    111,786.24x = 154,186.90 × 75,913.98
  4. Step 4: Simplify right side
    111,786.24x = 11,704,941,242.86
  5. Step 5: Solve for x
    x = 11,704,941,242.86/111,786.24
  6. Step 6: Final answer
    x = 104,708.25

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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.