Home / 165,820.81-228,869.66-105,379.67

Finding the Fourth Proportional to 165,820.81, 228,869.66 and 105,379.67

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Solution

The fourth proportional to 165,820.81, 228,869.66 and 105,379.67 is: 145,447.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,820.81 : 228,869.66 = 105,379.67 : x
  2. Step 2: Convert to fraction form
    165,820.81/228,869.66 = 105,379.67/x
  3. Step 3: Cross multiply
    165,820.81x = 228,869.66 × 105,379.67
  4. Step 4: Simplify right side
    165,820.81x = 24,118,209,243.81
  5. Step 5: Solve for x
    x = 24,118,209,243.81/165,820.81
  6. Step 6: Final answer
    x = 145,447.42

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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.