Home / 155,786.08-214,984.88-84,166.08

Finding the Fourth Proportional to 155,786.08, 214,984.88 and 84,166.08

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Solution

The fourth proportional to 155,786.08, 214,984.88 and 84,166.08 is: 116,149.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,786.08 : 214,984.88 = 84,166.08 : x
  2. Step 2: Convert to fraction form
    155,786.08/214,984.88 = 84,166.08/x
  3. Step 3: Cross multiply
    155,786.08x = 214,984.88 × 84,166.08
  4. Step 4: Simplify right side
    155,786.08x = 18,094,434,608.87
  5. Step 5: Solve for x
    x = 18,094,434,608.87/155,786.08
  6. Step 6: Final answer
    x = 116,149.24

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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.