Home / 205,929.88-284,169.87-115,285.07

Finding the Fourth Proportional to 205,929.88, 284,169.87 and 115,285.07

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Solution

The fourth proportional to 205,929.88, 284,169.87 and 115,285.07 is: 159,085.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,929.88 : 284,169.87 = 115,285.07 : x
  2. Step 2: Convert to fraction form
    205,929.88/284,169.87 = 115,285.07/x
  3. Step 3: Cross multiply
    205,929.88x = 284,169.87 × 115,285.07
  4. Step 4: Simplify right side
    205,929.88x = 32,760,544,065.27
  5. Step 5: Solve for x
    x = 32,760,544,065.27/205,929.88
  6. Step 6: Final answer
    x = 159,085.92

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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.