Home / 236,207.62-325,968.42-128,778.42

Finding the Fourth Proportional to 236,207.62, 325,968.42 and 128,778.42

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Solution

The fourth proportional to 236,207.62, 325,968.42 and 128,778.42 is: 177,715.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,207.62 : 325,968.42 = 128,778.42 : x
  2. Step 2: Convert to fraction form
    236,207.62/325,968.42 = 128,778.42/x
  3. Step 3: Cross multiply
    236,207.62x = 325,968.42 × 128,778.42
  4. Step 4: Simplify right side
    236,207.62x = 41,977,697,974.88
  5. Step 5: Solve for x
    x = 41,977,697,974.88/236,207.62
  6. Step 6: Final answer
    x = 177,715.26

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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.