Home / 156,078.25-215,335.26-101,605.55

Finding the Fourth Proportional to 156,078.25, 215,335.26 and 101,605.55

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Solution

The fourth proportional to 156,078.25, 215,335.26 and 101,605.55 is: 140,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,078.25 : 215,335.26 = 101,605.55 : x
  2. Step 2: Convert to fraction form
    156,078.25/215,335.26 = 101,605.55/x
  3. Step 3: Cross multiply
    156,078.25x = 215,335.26 × 101,605.55
  4. Step 4: Simplify right side
    156,078.25x = 21,879,256,450.02
  5. Step 5: Solve for x
    x = 21,879,256,450.02/156,078.25
  6. Step 6: Final answer
    x = 140,181.33

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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.