Home / 201,636.19-278,255.78-110,990.22

Finding the Fourth Proportional to 201,636.19, 278,255.78 and 110,990.22

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Solution

The fourth proportional to 201,636.19, 278,255.78 and 110,990.22 is: 153,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,636.19 : 278,255.78 = 110,990.22 : x
  2. Step 2: Convert to fraction form
    201,636.19/278,255.78 = 110,990.22/x
  3. Step 3: Cross multiply
    201,636.19x = 278,255.78 × 110,990.22
  4. Step 4: Simplify right side
    201,636.19x = 30,883,670,238.47
  5. Step 5: Solve for x
    x = 30,883,670,238.47/201,636.19
  6. Step 6: Final answer
    x = 153,165.31

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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.