Home / 219,743.20-329,668.80-61,969.60

Finding the Fourth Proportional to 219,743.20, 329,668.80 and 61,969.60

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Solution

The fourth proportional to 219,743.20, 329,668.80 and 61,969.60 is: 92,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,743.20 : 329,668.80 = 61,969.60 : x
  2. Step 2: Convert to fraction form
    219,743.20/329,668.80 = 61,969.60/x
  3. Step 3: Cross multiply
    219,743.20x = 329,668.80 × 61,969.60
  4. Step 4: Simplify right side
    219,743.20x = 20,429,443,668.48
  5. Step 5: Solve for x
    x = 20,429,443,668.48/219,743.20
  6. Step 6: Final answer
    x = 92,969.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.