Home / 155,782.08-214,979.37-84,162.07

Finding the Fourth Proportional to 155,782.08, 214,979.37 and 84,162.07

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Solution

The fourth proportional to 155,782.08, 214,979.37 and 84,162.07 is: 116,143.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,782.08 : 214,979.37 = 84,162.07 : x
  2. Step 2: Convert to fraction form
    155,782.08/214,979.37 = 84,162.07/x
  3. Step 3: Cross multiply
    155,782.08x = 214,979.37 × 84,162.07
  4. Step 4: Simplify right side
    155,782.08x = 18,093,108,786.50
  5. Step 5: Solve for x
    x = 18,093,108,786.50/155,782.08
  6. Step 6: Final answer
    x = 116,143.71

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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.