Home / 141,579.39-195,383.43-77,921.09

Finding the Fourth Proportional to 141,579.39, 195,383.43 and 77,921.09

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Solution

The fourth proportional to 141,579.39, 195,383.43 and 77,921.09 is: 107,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,579.39 : 195,383.43 = 77,921.09 : x
  2. Step 2: Convert to fraction form
    141,579.39/195,383.43 = 77,921.09/x
  3. Step 3: Cross multiply
    141,579.39x = 195,383.43 × 77,921.09
  4. Step 4: Simplify right side
    141,579.39x = 15,224,488,856.62
  5. Step 5: Solve for x
    x = 15,224,488,856.62/141,579.39
  6. Step 6: Final answer
    x = 107,533.23

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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.