Home / 127,825.05-191,736.75-39,078.21

Finding the Fourth Proportional to 127,825.05, 191,736.75 and 39,078.21

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Solution

The fourth proportional to 127,825.05, 191,736.75 and 39,078.21 is: 58,617.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,825.05 : 191,736.75 = 39,078.21 : x
  2. Step 2: Convert to fraction form
    127,825.05/191,736.75 = 39,078.21/x
  3. Step 3: Cross multiply
    127,825.05x = 191,736.75 × 39,078.21
  4. Step 4: Simplify right side
    127,825.05x = 7,492,728,981.22
  5. Step 5: Solve for x
    x = 7,492,728,981.22/127,825.05
  6. Step 6: Final answer
    x = 58,617.06

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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.