Home / 219,965.19-330,072.59-118,761.89

Finding the Fourth Proportional to 219,965.19, 330,072.59 and 118,761.89

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Solution

The fourth proportional to 219,965.19, 330,072.59 and 118,761.89 is: 178,210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,965.19 : 330,072.59 = 118,761.89 : x
  2. Step 2: Convert to fraction form
    219,965.19/330,072.59 = 118,761.89/x
  3. Step 3: Cross multiply
    219,965.19x = 330,072.59 × 118,761.89
  4. Step 4: Simplify right side
    219,965.19x = 39,200,042,826.78
  5. Step 5: Solve for x
    x = 39,200,042,826.78/219,965.19
  6. Step 6: Final answer
    x = 178,210.21

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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.