Home / 165,821.82-228,871.05-105,380.67

Finding the Fourth Proportional to 165,821.82, 228,871.05 and 105,380.67

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Solution

The fourth proportional to 165,821.82, 228,871.05 and 105,380.67 is: 145,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,821.82 : 228,871.05 = 105,380.67 : x
  2. Step 2: Convert to fraction form
    165,821.82/228,871.05 = 105,380.67/x
  3. Step 3: Cross multiply
    165,821.82x = 228,871.05 × 105,380.67
  4. Step 4: Simplify right side
    165,821.82x = 24,118,584,592.60
  5. Step 5: Solve for x
    x = 24,118,584,592.60/165,821.82
  6. Step 6: Final answer
    x = 145,448.80

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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.