Home / 118,141.14-163,065.78-67,183.65

Finding the Fourth Proportional to 118,141.14, 163,065.78 and 67,183.65

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Solution

The fourth proportional to 118,141.14, 163,065.78 and 67,183.65 is: 92,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,141.14 : 163,065.78 = 67,183.65 : x
  2. Step 2: Convert to fraction form
    118,141.14/163,065.78 = 67,183.65/x
  3. Step 3: Cross multiply
    118,141.14x = 163,065.78 × 67,183.65
  4. Step 4: Simplify right side
    118,141.14x = 10,955,354,290.50
  5. Step 5: Solve for x
    x = 10,955,354,290.50/118,141.14
  6. Step 6: Final answer
    x = 92,731.07

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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.