Home / 128,006.68-192,042.44-39,264.72

Finding the Fourth Proportional to 128,006.68, 192,042.44 and 39,264.72

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Solution

The fourth proportional to 128,006.68, 192,042.44 and 39,264.72 is: 58,907.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006.68 : 192,042.44 = 39,264.72 : x
  2. Step 2: Convert to fraction form
    128,006.68/192,042.44 = 39,264.72/x
  3. Step 3: Cross multiply
    128,006.68x = 192,042.44 × 39,264.72
  4. Step 4: Simplify right side
    128,006.68x = 7,540,492,634.72
  5. Step 5: Solve for x
    x = 7,540,492,634.72/128,006.68
  6. Step 6: Final answer
    x = 58,907.02

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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.