Home / 109,879.12-151,634.82-59,578.12

Finding the Fourth Proportional to 109,879.12, 151,634.82 and 59,578.12

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Solution

The fourth proportional to 109,879.12, 151,634.82 and 59,578.12 is: 82,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,879.12 : 151,634.82 = 59,578.12 : x
  2. Step 2: Convert to fraction form
    109,879.12/151,634.82 = 59,578.12/x
  3. Step 3: Cross multiply
    109,879.12x = 151,634.82 × 59,578.12
  4. Step 4: Simplify right side
    109,879.12x = 9,034,117,502.14
  5. Step 5: Solve for x
    x = 9,034,117,502.14/109,879.12
  6. Step 6: Final answer
    x = 82,218.69

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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.