Home / 139,834.28-192,962.21-82,460.44

Finding the Fourth Proportional to 139,834.28, 192,962.21 and 82,460.44

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Solution

The fourth proportional to 139,834.28, 192,962.21 and 82,460.44 is: 113,790.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,834.28 : 192,962.21 = 82,460.44 : x
  2. Step 2: Convert to fraction form
    139,834.28/192,962.21 = 82,460.44/x
  3. Step 3: Cross multiply
    139,834.28x = 192,962.21 × 82,460.44
  4. Step 4: Simplify right side
    139,834.28x = 15,911,748,258.09
  5. Step 5: Solve for x
    x = 15,911,748,258.09/139,834.28
  6. Step 6: Final answer
    x = 113,790.04

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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.