Home / 230,829.69-318,554.60-128,860.82

Finding the Fourth Proportional to 230,829.69, 318,554.60 and 128,860.82

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Solution

The fourth proportional to 230,829.69, 318,554.60 and 128,860.82 is: 177,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,829.69 : 318,554.60 = 128,860.82 : x
  2. Step 2: Convert to fraction form
    230,829.69/318,554.60 = 128,860.82/x
  3. Step 3: Cross multiply
    230,829.69x = 318,554.60 × 128,860.82
  4. Step 4: Simplify right side
    230,829.69x = 41,049,204,733.69
  5. Step 5: Solve for x
    x = 41,049,204,733.69/230,829.69
  6. Step 6: Final answer
    x = 177,833.30

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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.