Home / 140,512.63-193,902.63-80,102.75

Finding the Fourth Proportional to 140,512.63, 193,902.63 and 80,102.75

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Solution

The fourth proportional to 140,512.63, 193,902.63 and 80,102.75 is: 110,539.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,512.63 : 193,902.63 = 80,102.75 : x
  2. Step 2: Convert to fraction form
    140,512.63/193,902.63 = 80,102.75/x
  3. Step 3: Cross multiply
    140,512.63x = 193,902.63 × 80,102.75
  4. Step 4: Simplify right side
    140,512.63x = 15,532,133,846.55
  5. Step 5: Solve for x
    x = 15,532,133,846.55/140,512.63
  6. Step 6: Final answer
    x = 110,539.06

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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.