Home / 209,580.09-289,220.56-114,087.51

Finding the Fourth Proportional to 209,580.09, 289,220.56 and 114,087.51

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Solution

The fourth proportional to 209,580.09, 289,220.56 and 114,087.51 is: 157,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,580.09 : 289,220.56 = 114,087.51 : x
  2. Step 2: Convert to fraction form
    209,580.09/289,220.56 = 114,087.51/x
  3. Step 3: Cross multiply
    209,580.09x = 289,220.56 × 114,087.51
  4. Step 4: Simplify right side
    209,580.09x = 32,996,453,531.21
  5. Step 5: Solve for x
    x = 32,996,453,531.21/209,580.09
  6. Step 6: Final answer
    x = 157,440.78

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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.