Home / 236,074.20-325,782.40-128,644.20

Finding the Fourth Proportional to 236,074.20, 325,782.40 and 128,644.20

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Solution

The fourth proportional to 236,074.20, 325,782.40 and 128,644.20 is: 177,529.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,074.20 : 325,782.40 = 128,644.20 : x
  2. Step 2: Convert to fraction form
    236,074.20/325,782.40 = 128,644.20/x
  3. Step 3: Cross multiply
    236,074.20x = 325,782.40 × 128,644.20
  4. Step 4: Simplify right side
    236,074.20x = 41,910,016,222.08
  5. Step 5: Solve for x
    x = 41,910,016,222.08/236,074.20
  6. Step 6: Final answer
    x = 177,529.00

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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.