Home / 115,173.87-158,940.58-66,804.45

Finding the Fourth Proportional to 115,173.87, 158,940.58 and 66,804.45

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Solution

The fourth proportional to 115,173.87, 158,940.58 and 66,804.45 is: 92,190.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,173.87 : 158,940.58 = 66,804.45 : x
  2. Step 2: Convert to fraction form
    115,173.87/158,940.58 = 66,804.45/x
  3. Step 3: Cross multiply
    115,173.87x = 158,940.58 × 66,804.45
  4. Step 4: Simplify right side
    115,173.87x = 10,617,937,391.80
  5. Step 5: Solve for x
    x = 10,617,937,391.80/115,173.87
  6. Step 6: Final answer
    x = 92,190.50

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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.