Home / 189,518.67-261,531.69-103,474.33

Finding the Fourth Proportional to 189,518.67, 261,531.69 and 103,474.33

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Solution

The fourth proportional to 189,518.67, 261,531.69 and 103,474.33 is: 142,792.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,518.67 : 261,531.69 = 103,474.33 : x
  2. Step 2: Convert to fraction form
    189,518.67/261,531.69 = 103,474.33/x
  3. Step 3: Cross multiply
    189,518.67x = 261,531.69 × 103,474.33
  4. Step 4: Simplify right side
    189,518.67x = 27,061,815,354.66
  5. Step 5: Solve for x
    x = 27,061,815,354.66/189,518.67
  6. Step 6: Final answer
    x = 142,792.35

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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.