Home / 140,512.46-193,902.39-80,102.57

Finding the Fourth Proportional to 140,512.46, 193,902.39 and 80,102.57

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Solution

The fourth proportional to 140,512.46, 193,902.39 and 80,102.57 is: 110,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,512.46 : 193,902.39 = 80,102.57 : x
  2. Step 2: Convert to fraction form
    140,512.46/193,902.39 = 80,102.57/x
  3. Step 3: Cross multiply
    140,512.46x = 193,902.39 × 80,102.57
  4. Step 4: Simplify right side
    140,512.46x = 15,532,078,798.63
  5. Step 5: Solve for x
    x = 15,532,078,798.63/140,512.46
  6. Step 6: Final answer
    x = 110,538.80

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1.5x scale

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.