Home / 192,143.36-288,181.44-86,937.60

Finding the Fourth Proportional to 192,143.36, 288,181.44 and 86,937.60

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Solution

The fourth proportional to 192,143.36, 288,181.44 and 86,937.60 is: 130,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,143.36 : 288,181.44 = 86,937.60 : x
  2. Step 2: Convert to fraction form
    192,143.36/288,181.44 = 86,937.60/x
  3. Step 3: Cross multiply
    192,143.36x = 288,181.44 × 86,937.60
  4. Step 4: Simplify right side
    192,143.36x = 25,053,802,758.14
  5. Step 5: Solve for x
    x = 25,053,802,758.14/192,143.36
  6. Step 6: Final answer
    x = 130,391.20

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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.