Home / 142,629.63-196,872.63-82,240.47

Finding the Fourth Proportional to 142,629.63, 196,872.63 and 82,240.47

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Solution

The fourth proportional to 142,629.63, 196,872.63 and 82,240.47 is: 113,517.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,629.63 : 196,872.63 = 82,240.47 : x
  2. Step 2: Convert to fraction form
    142,629.63/196,872.63 = 82,240.47/x
  3. Step 3: Cross multiply
    142,629.63x = 196,872.63 × 82,240.47
  4. Step 4: Simplify right side
    142,629.63x = 16,190,897,621.34
  5. Step 5: Solve for x
    x = 16,190,897,621.34/142,629.63
  6. Step 6: Final answer
    x = 113,517.07

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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.