Home / 205,072.60-307,695.30-111,645.40

Finding the Fourth Proportional to 205,072.60, 307,695.30 and 111,645.40

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Solution

The fourth proportional to 205,072.60, 307,695.30 and 111,645.40 is: 167,515.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,072.60 : 307,695.30 = 111,645.40 : x
  2. Step 2: Convert to fraction form
    205,072.60/307,695.30 = 111,645.40/x
  3. Step 3: Cross multiply
    205,072.60x = 307,695.30 × 111,645.40
  4. Step 4: Simplify right side
    205,072.60x = 34,352,764,846.62
  5. Step 5: Solve for x
    x = 34,352,764,846.62/205,072.60
  6. Step 6: Final answer
    x = 167,515.14

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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.