Home / 128,277.70-192,335.04-112,514.38

Finding the Fourth Proportional to 128,277.70, 192,335.04 and 112,514.38

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Solution

The fourth proportional to 128,277.70, 192,335.04 and 112,514.38 is: 168,700.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,277.70 : 192,335.04 = 112,514.38 : x
  2. Step 2: Convert to fraction form
    128,277.70/192,335.04 = 112,514.38/x
  3. Step 3: Cross multiply
    128,277.70x = 192,335.04 × 112,514.38
  4. Step 4: Simplify right side
    128,277.70x = 21,640,458,440.22
  5. Step 5: Solve for x
    x = 21,640,458,440.22/128,277.70
  6. Step 6: Final answer
    x = 168,700.08

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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.