Home / 201,945.48-278,673.40-111,301.17

Finding the Fourth Proportional to 201,945.48, 278,673.40 and 111,301.17

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Solution

The fourth proportional to 201,945.48, 278,673.40 and 111,301.17 is: 153,589.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,945.48 : 278,673.40 = 111,301.17 : x
  2. Step 2: Convert to fraction form
    201,945.48/278,673.40 = 111,301.17/x
  3. Step 3: Cross multiply
    201,945.48x = 278,673.40 × 111,301.17
  4. Step 4: Simplify right side
    201,945.48x = 31,016,674,911.37
  5. Step 5: Solve for x
    x = 31,016,674,911.37/201,945.48
  6. Step 6: Final answer
    x = 153,589.35

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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.