Home / 142,610.76-196,807.44-82,176.60

Finding the Fourth Proportional to 142,610.76, 196,807.44 and 82,176.60

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Solution

The fourth proportional to 142,610.76, 196,807.44 and 82,176.60 is: 113,406.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,610.76 : 196,807.44 = 82,176.60 : x
  2. Step 2: Convert to fraction form
    142,610.76/196,807.44 = 82,176.60/x
  3. Step 3: Cross multiply
    142,610.76x = 196,807.44 × 82,176.60
  4. Step 4: Simplify right side
    142,610.76x = 16,172,966,273.90
  5. Step 5: Solve for x
    x = 16,172,966,273.90/142,610.76
  6. Step 6: Final answer
    x = 113,406.35

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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.