Home / 209,865.40-289,605.81-114,370.06

Finding the Fourth Proportional to 209,865.40, 289,605.81 and 114,370.06

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Solution

The fourth proportional to 209,865.40, 289,605.81 and 114,370.06 is: 157,826.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,865.40 : 289,605.81 = 114,370.06 : x
  2. Step 2: Convert to fraction form
    209,865.40/289,605.81 = 114,370.06/x
  3. Step 3: Cross multiply
    209,865.40x = 289,605.81 × 114,370.06
  4. Step 4: Simplify right side
    209,865.40x = 33,122,233,866.05
  5. Step 5: Solve for x
    x = 33,122,233,866.05/209,865.40
  6. Step 6: Final answer
    x = 157,826.08

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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.