Home / 236,212.10-325,974.60-128,782.91

Finding the Fourth Proportional to 236,212.10, 325,974.60 and 128,782.91

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Solution

The fourth proportional to 236,212.10, 325,974.60 and 128,782.91 is: 177,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,212.10 : 325,974.60 = 128,782.91 : x
  2. Step 2: Convert to fraction form
    236,212.10/325,974.60 = 128,782.91/x
  3. Step 3: Cross multiply
    236,212.10x = 325,974.60 × 128,782.91
  4. Step 4: Simplify right side
    236,212.10x = 41,979,957,896.04
  5. Step 5: Solve for x
    x = 41,979,957,896.04/236,212.10
  6. Step 6: Final answer
    x = 177,721.46

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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.