Home / 128,277.57-192,334.86-112,514.26

Finding the Fourth Proportional to 128,277.57, 192,334.86 and 112,514.26

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Solution

The fourth proportional to 128,277.57, 192,334.86 and 112,514.26 is: 168,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,277.57 : 192,334.86 = 112,514.26 : x
  2. Step 2: Convert to fraction form
    128,277.57/192,334.86 = 112,514.26/x
  3. Step 3: Cross multiply
    128,277.57x = 192,334.86 × 112,514.26
  4. Step 4: Simplify right side
    128,277.57x = 21,640,414,445.10
  5. Step 5: Solve for x
    x = 21,640,414,445.10/128,277.57
  6. Step 6: Final answer
    x = 168,699.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.