Home / 111,955.40-167,933.10-105,540.20

Finding the Fourth Proportional to 111,955.40, 167,933.10 and 105,540.20

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Solution

The fourth proportional to 111,955.40, 167,933.10 and 105,540.20 is: 158,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,955.40 : 167,933.10 = 105,540.20 : x
  2. Step 2: Convert to fraction form
    111,955.40/167,933.10 = 105,540.20/x
  3. Step 3: Cross multiply
    111,955.40x = 167,933.10 × 105,540.20
  4. Step 4: Simplify right side
    111,955.40x = 17,723,692,960.62
  5. Step 5: Solve for x
    x = 17,723,692,960.62/111,955.40
  6. Step 6: Final answer
    x = 158,310.30

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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.