Home / 165,322.85-228,170.43-100,829.50

Finding the Fourth Proportional to 165,322.85, 228,170.43 and 100,829.50

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Solution

The fourth proportional to 165,322.85, 228,170.43 and 100,829.50 is: 139,159.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,322.85 : 228,170.43 = 100,829.50 : x
  2. Step 2: Convert to fraction form
    165,322.85/228,170.43 = 100,829.50/x
  3. Step 3: Cross multiply
    165,322.85x = 228,170.43 × 100,829.50
  4. Step 4: Simplify right side
    165,322.85x = 23,006,310,371.69
  5. Step 5: Solve for x
    x = 23,006,310,371.69/165,322.85
  6. Step 6: Final answer
    x = 139,159.89

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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.