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Finding the Fourth Proportional to 139,615.35, 192,670.60 and 79,184.44

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Solution

The fourth proportional to 139,615.35, 192,670.60 and 79,184.44 is: 109,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,615.35 : 192,670.60 = 79,184.44 : x
  2. Step 2: Convert to fraction form
    139,615.35/192,670.60 = 79,184.44/x
  3. Step 3: Cross multiply
    139,615.35x = 192,670.60 × 79,184.44
  4. Step 4: Simplify right side
    139,615.35x = 15,256,512,673.04
  5. Step 5: Solve for x
    x = 15,256,512,673.04/139,615.35
  6. Step 6: Final answer
    x = 109,275.33

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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.