Home / 236,070.72-325,775.79-128,640.42

Finding the Fourth Proportional to 236,070.72, 325,775.79 and 128,640.42

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Solution

The fourth proportional to 236,070.72, 325,775.79 and 128,640.42 is: 177,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,070.72 : 325,775.79 = 128,640.42 : x
  2. Step 2: Convert to fraction form
    236,070.72/325,775.79 = 128,640.42/x
  3. Step 3: Cross multiply
    236,070.72x = 325,775.79 × 128,640.42
  4. Step 4: Simplify right side
    236,070.72x = 41,907,934,451.43
  5. Step 5: Solve for x
    x = 41,907,934,451.43/236,070.72
  6. Step 6: Final answer
    x = 177,522.80

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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.