Home / 168,379.09-232,392.78-100,400.24

Finding the Fourth Proportional to 168,379.09, 232,392.78 and 100,400.24

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Solution

The fourth proportional to 168,379.09, 232,392.78 and 100,400.24 is: 138,570.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,379.09 : 232,392.78 = 100,400.24 : x
  2. Step 2: Convert to fraction form
    168,379.09/232,392.78 = 100,400.24/x
  3. Step 3: Cross multiply
    168,379.09x = 232,392.78 × 100,400.24
  4. Step 4: Simplify right side
    168,379.09x = 23,332,291,467.25
  5. Step 5: Solve for x
    x = 23,332,291,467.25/168,379.09
  6. Step 6: Final answer
    x = 138,570.01

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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.