Home / 209,579.82-289,220.16-114,087.21

Finding the Fourth Proportional to 209,579.82, 289,220.16 and 114,087.21

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Solution

The fourth proportional to 209,579.82, 289,220.16 and 114,087.21 is: 157,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,579.82 : 289,220.16 = 114,087.21 : x
  2. Step 2: Convert to fraction form
    209,579.82/289,220.16 = 114,087.21/x
  3. Step 3: Cross multiply
    209,579.82x = 289,220.16 × 114,087.21
  4. Step 4: Simplify right side
    209,579.82x = 32,996,321,130.15
  5. Step 5: Solve for x
    x = 32,996,321,130.15/209,579.82
  6. Step 6: Final answer
    x = 157,440.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.