Home / 126,285,142.87-174,177,467.67-108,673,729.39

Finding the Fourth Proportional to 126,285,142.87, 174,177,467.67 and 108,673,729.39

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Solution

The fourth proportional to 126,285,142.87, 174,177,467.67 and 108,673,729.39 is: 149,887,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,285,142.87 : 174,177,467.67 = 108,673,729.39 : x
  2. Step 2: Convert to fraction form
    126,285,142.87/174,177,467.67 = 108,673,729.39/x
  3. Step 3: Cross multiply
    126,285,142.87x = 174,177,467.67 × 108,673,729.39
  4. Step 4: Simplify right side
    126,285,142.87x = 18,928,514,987,405,052
  5. Step 5: Solve for x
    x = 18,928,514,987,405,052/126,285,142.87
  6. Step 6: Final answer
    x = 149,887,109.10

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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.