Home / 188,128.32-281,823.24-109,076.40

Finding the Fourth Proportional to 188,128.32, 281,823.24 and 109,076.40

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Solution

The fourth proportional to 188,128.32, 281,823.24 and 109,076.40 is: 163,400.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,128.32 : 281,823.24 = 109,076.40 : x
  2. Step 2: Convert to fraction form
    188,128.32/281,823.24 = 109,076.40/x
  3. Step 3: Cross multiply
    188,128.32x = 281,823.24 × 109,076.40
  4. Step 4: Simplify right side
    188,128.32x = 30,740,264,455.54
  5. Step 5: Solve for x
    x = 30,740,264,455.54/188,128.32
  6. Step 6: Final answer
    x = 163,400.52

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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.