Home / 128,002.97-191,997.26-39,256.23

Finding the Fourth Proportional to 128,002.97, 191,997.26 and 39,256.23

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Solution

The fourth proportional to 128,002.97, 191,997.26 and 39,256.23 is: 58,882.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,002.97 : 191,997.26 = 39,256.23 : x
  2. Step 2: Convert to fraction form
    128,002.97/191,997.26 = 39,256.23/x
  3. Step 3: Cross multiply
    128,002.97x = 191,997.26 × 39,256.23
  4. Step 4: Simplify right side
    128,002.97x = 7,537,088,401.65
  5. Step 5: Solve for x
    x = 7,537,088,401.65/128,002.97
  6. Step 6: Final answer
    x = 58,882.14

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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.