Home / 90,629.43-125,018.24-84,214.79

Finding the Fourth Proportional to 90,629.43, 125,018.24 and 84,214.79

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Solution

The fourth proportional to 90,629.43, 125,018.24 and 84,214.79 is: 116,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629.43 : 125,018.24 = 84,214.79 : x
  2. Step 2: Convert to fraction form
    90,629.43/125,018.24 = 84,214.79/x
  3. Step 3: Cross multiply
    90,629.43x = 125,018.24 × 84,214.79
  4. Step 4: Simplify right side
    90,629.43x = 10,528,383,781.60
  5. Step 5: Solve for x
    x = 10,528,383,781.60/90,629.43
  6. Step 6: Final answer
    x = 116,169.59

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1.5x scale

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.