Home / 168,942.80-233,118-100,945.40

Finding the Fourth Proportional to 168,942.80, 233,118 and 100,945.40

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Solution

The fourth proportional to 168,942.80, 233,118 and 100,945.40 is: 139,290.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,942.80 : 233,118 = 100,945.40 : x
  2. Step 2: Convert to fraction form
    168,942.80/233,118 = 100,945.40/x
  3. Step 3: Cross multiply
    168,942.80x = 233,118 × 100,945.40
  4. Step 4: Simplify right side
    168,942.80x = 23,532,189,757.20
  5. Step 5: Solve for x
    x = 23,532,189,757.20/168,942.80
  6. Step 6: Final answer
    x = 139,290.87

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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.