Home / 201,848.51-278,539.88-111,186.69

Finding the Fourth Proportional to 201,848.51, 278,539.88 and 111,186.69

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Solution

The fourth proportional to 201,848.51, 278,539.88 and 111,186.69 is: 153,431.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,848.51 : 278,539.88 = 111,186.69 : x
  2. Step 2: Convert to fraction form
    201,848.51/278,539.88 = 111,186.69/x
  3. Step 3: Cross multiply
    201,848.51x = 278,539.88 × 111,186.69
  4. Step 4: Simplify right side
    201,848.51x = 30,969,926,734.26
  5. Step 5: Solve for x
    x = 30,969,926,734.26/201,848.51
  6. Step 6: Final answer
    x = 153,431.54

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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.