Home / 188,811.33-260,561.39-103,929

Finding the Fourth Proportional to 188,811.33, 260,561.39 and 103,929

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Solution

The fourth proportional to 188,811.33, 260,561.39 and 103,929 is: 143,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,811.33 : 260,561.39 = 103,929 : x
  2. Step 2: Convert to fraction form
    188,811.33/260,561.39 = 103,929/x
  3. Step 3: Cross multiply
    188,811.33x = 260,561.39 × 103,929
  4. Step 4: Simplify right side
    188,811.33x = 27,079,884,181.67
  5. Step 5: Solve for x
    x = 27,079,884,181.67/188,811.33
  6. Step 6: Final answer
    x = 143,422.98

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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.