Home / 206,828.64-285,554.16-143,143.20

Finding the Fourth Proportional to 206,828.64, 285,554.16 and 143,143.20

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Solution

The fourth proportional to 206,828.64, 285,554.16 and 143,143.20 is: 197,628.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,828.64 : 285,554.16 = 143,143.20 : x
  2. Step 2: Convert to fraction form
    206,828.64/285,554.16 = 143,143.20/x
  3. Step 3: Cross multiply
    206,828.64x = 285,554.16 × 143,143.20
  4. Step 4: Simplify right side
    206,828.64x = 40,875,136,235.71
  5. Step 5: Solve for x
    x = 40,875,136,235.71/206,828.64
  6. Step 6: Final answer
    x = 197,628.03

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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.