Home / 171,919.20-257,878.80-108,933.60

Finding the Fourth Proportional to 171,919.20, 257,878.80 and 108,933.60

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Solution

The fourth proportional to 171,919.20, 257,878.80 and 108,933.60 is: 163,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,919.20 : 257,878.80 = 108,933.60 : x
  2. Step 2: Convert to fraction form
    171,919.20/257,878.80 = 108,933.60/x
  3. Step 3: Cross multiply
    171,919.20x = 257,878.80 × 108,933.60
  4. Step 4: Simplify right side
    171,919.20x = 28,091,666,047.68
  5. Step 5: Solve for x
    x = 28,091,666,047.68/171,919.20
  6. Step 6: Final answer
    x = 163,400.40

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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.