Home / 209,721.60-289,416.24-114,226.20

Finding the Fourth Proportional to 209,721.60, 289,416.24 and 114,226.20

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Solution

The fourth proportional to 209,721.60, 289,416.24 and 114,226.20 is: 157,632.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,721.60 : 289,416.24 = 114,226.20 : x
  2. Step 2: Convert to fraction form
    209,721.60/289,416.24 = 114,226.20/x
  3. Step 3: Cross multiply
    209,721.60x = 289,416.24 × 114,226.20
  4. Step 4: Simplify right side
    209,721.60x = 33,058,917,313.49
  5. Step 5: Solve for x
    x = 33,058,917,313.49/209,721.60
  6. Step 6: Final answer
    x = 157,632.39

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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.