Home / 203,722.20-305,585.04-77,328.52

Finding the Fourth Proportional to 203,722.20, 305,585.04 and 77,328.52

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Solution

The fourth proportional to 203,722.20, 305,585.04 and 77,328.52 is: 115,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,722.20 : 305,585.04 = 77,328.52 : x
  2. Step 2: Convert to fraction form
    203,722.20/305,585.04 = 77,328.52/x
  3. Step 3: Cross multiply
    203,722.20x = 305,585.04 × 77,328.52
  4. Step 4: Simplify right side
    203,722.20x = 23,630,438,877.34
  5. Step 5: Solve for x
    x = 23,630,438,877.34/203,722.20
  6. Step 6: Final answer
    x = 115,993.44

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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.