Home / 236,170.80-325,907.64-128,739.12

Finding the Fourth Proportional to 236,170.80, 325,907.64 and 128,739.12

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Solution

The fourth proportional to 236,170.80, 325,907.64 and 128,739.12 is: 177,655.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,170.80 : 325,907.64 = 128,739.12 : x
  2. Step 2: Convert to fraction form
    236,170.80/325,907.64 = 128,739.12/x
  3. Step 3: Cross multiply
    236,170.80x = 325,907.64 × 128,739.12
  4. Step 4: Simplify right side
    236,170.80x = 41,957,062,774.88
  5. Step 5: Solve for x
    x = 41,957,062,774.88/236,170.80
  6. Step 6: Final answer
    x = 177,655.59

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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.