Home / 139,629.04-192,689.39-83,029.48

Finding the Fourth Proportional to 139,629.04, 192,689.39 and 83,029.48

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Solution

The fourth proportional to 139,629.04, 192,689.39 and 83,029.48 is: 114,581.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,629.04 : 192,689.39 = 83,029.48 : x
  2. Step 2: Convert to fraction form
    139,629.04/192,689.39 = 83,029.48/x
  3. Step 3: Cross multiply
    139,629.04x = 192,689.39 × 83,029.48
  4. Step 4: Simplify right side
    139,629.04x = 15,998,899,853.22
  5. Step 5: Solve for x
    x = 15,998,899,853.22/139,629.04
  6. Step 6: Final answer
    x = 114,581.46

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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.