Home / 205,142.78-282,873.85-133,389.74

Finding the Fourth Proportional to 205,142.78, 282,873.85 and 133,389.74

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Solution

The fourth proportional to 205,142.78, 282,873.85 and 133,389.74 is: 183,932.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,142.78 : 282,873.85 = 133,389.74 : x
  2. Step 2: Convert to fraction form
    205,142.78/282,873.85 = 133,389.74/x
  3. Step 3: Cross multiply
    205,142.78x = 282,873.85 × 133,389.74
  4. Step 4: Simplify right side
    205,142.78x = 37,732,467,556.46
  5. Step 5: Solve for x
    x = 37,732,467,556.46/205,142.78
  6. Step 6: Final answer
    x = 183,932.71

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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.