Home / 142,824.30-197,090.74-82,414.38

Finding the Fourth Proportional to 142,824.30, 197,090.74 and 82,414.38

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Solution

The fourth proportional to 142,824.30, 197,090.74 and 82,414.38 is: 113,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,824.30 : 197,090.74 = 82,414.38 : x
  2. Step 2: Convert to fraction form
    142,824.30/197,090.74 = 82,414.38/x
  3. Step 3: Cross multiply
    142,824.30x = 197,090.74 × 82,414.38
  4. Step 4: Simplify right side
    142,824.30x = 16,243,111,140.84
  5. Step 5: Solve for x
    x = 16,243,111,140.84/142,824.30
  6. Step 6: Final answer
    x = 113,727.92

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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.