Home / 235,964.72-325,629.64-128,534.42

Finding the Fourth Proportional to 235,964.72, 325,629.64 and 128,534.42

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Solution

The fourth proportional to 235,964.72, 325,629.64 and 128,534.42 is: 177,376.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,964.72 : 325,629.64 = 128,534.42 : x
  2. Step 2: Convert to fraction form
    235,964.72/325,629.64 = 128,534.42/x
  3. Step 3: Cross multiply
    235,964.72x = 325,629.64 × 128,534.42
  4. Step 4: Simplify right side
    235,964.72x = 41,854,616,912.21
  5. Step 5: Solve for x
    x = 41,854,616,912.21/235,964.72
  6. Step 6: Final answer
    x = 177,376.59

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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.