Home / 213,856.96-295,112.08-121,979.88

Finding the Fourth Proportional to 213,856.96, 295,112.08 and 121,979.88

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Solution

The fourth proportional to 213,856.96, 295,112.08 and 121,979.88 is: 168,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,856.96 : 295,112.08 = 121,979.88 : x
  2. Step 2: Convert to fraction form
    213,856.96/295,112.08 = 121,979.88/x
  3. Step 3: Cross multiply
    213,856.96x = 295,112.08 × 121,979.88
  4. Step 4: Simplify right side
    213,856.96x = 35,997,736,104.95
  5. Step 5: Solve for x
    x = 35,997,736,104.95/213,856.96
  6. Step 6: Final answer
    x = 168,326.23

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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.