Home / 168,403.66-232,391.25-100,385.57

Finding the Fourth Proportional to 168,403.66, 232,391.25 and 100,385.57

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Solution

The fourth proportional to 168,403.66, 232,391.25 and 100,385.57 is: 138,528.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,403.66 : 232,391.25 = 100,385.57 : x
  2. Step 2: Convert to fraction form
    168,403.66/232,391.25 = 100,385.57/x
  3. Step 3: Cross multiply
    168,403.66x = 232,391.25 × 100,385.57
  4. Step 4: Simplify right side
    168,403.66x = 23,328,728,675.24
  5. Step 5: Solve for x
    x = 23,328,728,675.24/168,403.66
  6. Step 6: Final answer
    x = 138,528.63

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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.