Home / 111,569.44-153,788.88-109,357.60

Finding the Fourth Proportional to 111,569.44, 153,788.88 and 109,357.60

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Solution

The fourth proportional to 111,569.44, 153,788.88 and 109,357.60 is: 150,740.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,569.44 : 153,788.88 = 109,357.60 : x
  2. Step 2: Convert to fraction form
    111,569.44/153,788.88 = 109,357.60/x
  3. Step 3: Cross multiply
    111,569.44x = 153,788.88 × 109,357.60
  4. Step 4: Simplify right side
    111,569.44x = 16,817,982,823.49
  5. Step 5: Solve for x
    x = 16,817,982,823.49/111,569.44
  6. Step 6: Final answer
    x = 150,740.05

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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.