Home / 203,433.23-280,733.51-117,385.47

Finding the Fourth Proportional to 203,433.23, 280,733.51 and 117,385.47

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Solution

The fourth proportional to 203,433.23, 280,733.51 and 117,385.47 is: 161,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,433.23 : 280,733.51 = 117,385.47 : x
  2. Step 2: Convert to fraction form
    203,433.23/280,733.51 = 117,385.47/x
  3. Step 3: Cross multiply
    203,433.23x = 280,733.51 × 117,385.47
  4. Step 4: Simplify right side
    203,433.23x = 32,954,035,309.56
  5. Step 5: Solve for x
    x = 32,954,035,309.56/203,433.23
  6. Step 6: Final answer
    x = 161,989.44

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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.