Home / 113,609.40-170,414.10-82,116.60

Finding the Fourth Proportional to 113,609.40, 170,414.10 and 82,116.60

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Solution

The fourth proportional to 113,609.40, 170,414.10 and 82,116.60 is: 123,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,609.40 : 170,414.10 = 82,116.60 : x
  2. Step 2: Convert to fraction form
    113,609.40/170,414.10 = 82,116.60/x
  3. Step 3: Cross multiply
    113,609.40x = 170,414.10 × 82,116.60
  4. Step 4: Simplify right side
    113,609.40x = 13,993,826,484.06
  5. Step 5: Solve for x
    x = 13,993,826,484.06/113,609.40
  6. Step 6: Final answer
    x = 123,174.90

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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.