Home / 106,047.40-159,072.20-31,168.88

Finding the Fourth Proportional to 106,047.40, 159,072.20 and 31,168.88

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Solution

The fourth proportional to 106,047.40, 159,072.20 and 31,168.88 is: 46,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,047.40 : 159,072.20 = 31,168.88 : x
  2. Step 2: Convert to fraction form
    106,047.40/159,072.20 = 31,168.88/x
  3. Step 3: Cross multiply
    106,047.40x = 159,072.20 × 31,168.88
  4. Step 4: Simplify right side
    106,047.40x = 4,958,102,313.14
  5. Step 5: Solve for x
    x = 4,958,102,313.14/106,047.40
  6. Step 6: Final answer
    x = 46,753.64

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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.