Home / 236,142.03-325,873.98-128,712.09

Finding the Fourth Proportional to 236,142.03, 325,873.98 and 128,712.09

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Solution

The fourth proportional to 236,142.03, 325,873.98 and 128,712.09 is: 177,621.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,142.03 : 325,873.98 = 128,712.09 : x
  2. Step 2: Convert to fraction form
    236,142.03/325,873.98 = 128,712.09/x
  3. Step 3: Cross multiply
    236,142.03x = 325,873.98 × 128,712.09
  4. Step 4: Simplify right side
    236,142.03x = 41,943,921,042.42
  5. Step 5: Solve for x
    x = 41,943,921,042.42/236,142.03
  6. Step 6: Final answer
    x = 177,621.58

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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.