Home / 236,130.96-325,851.20-128,698.72

Finding the Fourth Proportional to 236,130.96, 325,851.20 and 128,698.72

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Solution

The fourth proportional to 236,130.96, 325,851.20 and 128,698.72 is: 177,599.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,130.96 : 325,851.20 = 128,698.72 : x
  2. Step 2: Convert to fraction form
    236,130.96/325,851.20 = 128,698.72/x
  3. Step 3: Cross multiply
    236,130.96x = 325,851.20 × 128,698.72
  4. Step 4: Simplify right side
    236,130.96x = 41,936,632,350.46
  5. Step 5: Solve for x
    x = 41,936,632,350.46/236,130.96
  6. Step 6: Final answer
    x = 177,599.04

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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.