Home / 205,023.60-307,621.80-111,596.40

Finding the Fourth Proportional to 205,023.60, 307,621.80 and 111,596.40

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Solution

The fourth proportional to 205,023.60, 307,621.80 and 111,596.40 is: 167,441.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,023.60 : 307,621.80 = 111,596.40 : x
  2. Step 2: Convert to fraction form
    205,023.60/307,621.80 = 111,596.40/x
  3. Step 3: Cross multiply
    205,023.60x = 307,621.80 × 111,596.40
  4. Step 4: Simplify right side
    205,023.60x = 34,329,485,441.52
  5. Step 5: Solve for x
    x = 34,329,485,441.52/205,023.60
  6. Step 6: Final answer
    x = 167,441.63

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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.