Home / 213,235.71-319,964.27-86,968.59

Finding the Fourth Proportional to 213,235.71, 319,964.27 and 86,968.59

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Solution

The fourth proportional to 213,235.71, 319,964.27 and 86,968.59 is: 130,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,235.71 : 319,964.27 = 86,968.59 : x
  2. Step 2: Convert to fraction form
    213,235.71/319,964.27 = 86,968.59/x
  3. Step 3: Cross multiply
    213,235.71x = 319,964.27 × 86,968.59
  4. Step 4: Simplify right side
    213,235.71x = 27,826,840,977.44
  5. Step 5: Solve for x
    x = 27,826,840,977.44/213,235.71
  6. Step 6: Final answer
    x = 130,498.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.