Home / 105,616.14-158,431.49-30,736.90

Finding the Fourth Proportional to 105,616.14, 158,431.49 and 30,736.90

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Solution

The fourth proportional to 105,616.14, 158,431.49 and 30,736.90 is: 46,107.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,616.14 : 158,431.49 = 30,736.90 : x
  2. Step 2: Convert to fraction form
    105,616.14/158,431.49 = 30,736.90/x
  3. Step 3: Cross multiply
    105,616.14x = 158,431.49 × 30,736.90
  4. Step 4: Simplify right side
    105,616.14x = 4,869,692,864.98
  5. Step 5: Solve for x
    x = 4,869,692,864.98/105,616.14
  6. Step 6: Final answer
    x = 46,107.47

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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.