Home / 180,105.09-270,147.87-91,356.27

Finding the Fourth Proportional to 180,105.09, 270,147.87 and 91,356.27

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Solution

The fourth proportional to 180,105.09, 270,147.87 and 91,356.27 is: 137,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,105.09 : 270,147.87 = 91,356.27 : x
  2. Step 2: Convert to fraction form
    180,105.09/270,147.87 = 91,356.27/x
  3. Step 3: Cross multiply
    180,105.09x = 270,147.87 × 91,356.27
  4. Step 4: Simplify right side
    180,105.09x = 24,679,701,751.64
  5. Step 5: Solve for x
    x = 24,679,701,751.64/180,105.09
  6. Step 6: Final answer
    x = 137,029.45

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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.