Home / 205,127.12-307,690.68-57,383.12

Finding the Fourth Proportional to 205,127.12, 307,690.68 and 57,383.12

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Solution

The fourth proportional to 205,127.12, 307,690.68 and 57,383.12 is: 86,074.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,127.12 : 307,690.68 = 57,383.12 : x
  2. Step 2: Convert to fraction form
    205,127.12/307,690.68 = 57,383.12/x
  3. Step 3: Cross multiply
    205,127.12x = 307,690.68 × 57,383.12
  4. Step 4: Simplify right side
    205,127.12x = 17,656,251,213.32
  5. Step 5: Solve for x
    x = 17,656,251,213.32/205,127.12
  6. Step 6: Final answer
    x = 86,074.68

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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.