Home / 210,162.60-290,067.54-128,504.82

Finding the Fourth Proportional to 210,162.60, 290,067.54 and 128,504.82

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Solution

The fourth proportional to 210,162.60, 290,067.54 and 128,504.82 is: 177,363.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,162.60 : 290,067.54 = 128,504.82 : x
  2. Step 2: Convert to fraction form
    210,162.60/290,067.54 = 128,504.82/x
  3. Step 3: Cross multiply
    210,162.60x = 290,067.54 × 128,504.82
  4. Step 4: Simplify right side
    210,162.60x = 37,275,077,015.54
  5. Step 5: Solve for x
    x = 37,275,077,015.54/210,162.60
  6. Step 6: Final answer
    x = 177,363.04

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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.