Home / 161,865.21-223,390.31-93,902.97

Finding the Fourth Proportional to 161,865.21, 223,390.31 and 93,902.97

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Solution

The fourth proportional to 161,865.21, 223,390.31 and 93,902.97 is: 129,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,865.21 : 223,390.31 = 93,902.97 : x
  2. Step 2: Convert to fraction form
    161,865.21/223,390.31 = 93,902.97/x
  3. Step 3: Cross multiply
    161,865.21x = 223,390.31 × 93,902.97
  4. Step 4: Simplify right side
    161,865.21x = 20,977,013,578.22
  5. Step 5: Solve for x
    x = 20,977,013,578.22/161,865.21
  6. Step 6: Final answer
    x = 129,595.57

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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.