Home / 185,078.13-255,408.65-100,195.19

Finding the Fourth Proportional to 185,078.13, 255,408.65 and 100,195.19

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Solution

The fourth proportional to 185,078.13, 255,408.65 and 100,195.19 is: 138,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,078.13 : 255,408.65 = 100,195.19 : x
  2. Step 2: Convert to fraction form
    185,078.13/255,408.65 = 100,195.19/x
  3. Step 3: Cross multiply
    185,078.13x = 255,408.65 × 100,195.19
  4. Step 4: Simplify right side
    185,078.13x = 25,590,716,436.37
  5. Step 5: Solve for x
    x = 25,590,716,436.37/185,078.13
  6. Step 6: Final answer
    x = 138,269.80

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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.