Home / 258,923.56-388,536.30-109,154.68

Finding the Fourth Proportional to 258,923.56, 388,536.30 and 109,154.68

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Solution

The fourth proportional to 258,923.56, 388,536.30 and 109,154.68 is: 163,795.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,923.56 : 388,536.30 = 109,154.68 : x
  2. Step 2: Convert to fraction form
    258,923.56/388,536.30 = 109,154.68/x
  3. Step 3: Cross multiply
    258,923.56x = 388,536.30 × 109,154.68
  4. Step 4: Simplify right side
    258,923.56x = 42,410,555,494.88
  5. Step 5: Solve for x
    x = 42,410,555,494.88/258,923.56
  6. Step 6: Final answer
    x = 163,795.66

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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.