Home / 201,649.26-278,283.90-111,013.66

Finding the Fourth Proportional to 201,649.26, 278,283.90 and 111,013.66

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Solution

The fourth proportional to 201,649.26, 278,283.90 and 111,013.66 is: 153,203.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,649.26 : 278,283.90 = 111,013.66 : x
  2. Step 2: Convert to fraction form
    201,649.26/278,283.90 = 111,013.66/x
  3. Step 3: Cross multiply
    201,649.26x = 278,283.90 × 111,013.66
  4. Step 4: Simplify right side
    201,649.26x = 30,893,314,043.89
  5. Step 5: Solve for x
    x = 30,893,314,043.89/201,649.26
  6. Step 6: Final answer
    x = 153,203.21

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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.