Home / 140,072.64-193,292.40-79,634.80

Finding the Fourth Proportional to 140,072.64, 193,292.40 and 79,634.80

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Solution

The fourth proportional to 140,072.64, 193,292.40 and 79,634.80 is: 109,891.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,072.64 : 193,292.40 = 79,634.80 : x
  2. Step 2: Convert to fraction form
    140,072.64/193,292.40 = 79,634.80/x
  3. Step 3: Cross multiply
    140,072.64x = 193,292.40 × 79,634.80
  4. Step 4: Simplify right side
    140,072.64x = 15,392,801,615.52
  5. Step 5: Solve for x
    x = 15,392,801,615.52/140,072.64
  6. Step 6: Final answer
    x = 109,891.56

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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.