Home / 82,004.22-122,929.29-74,700.06

Finding the Fourth Proportional to 82,004.22, 122,929.29 and 74,700.06

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Solution

The fourth proportional to 82,004.22, 122,929.29 and 74,700.06 is: 111,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,004.22 : 122,929.29 = 74,700.06 : x
  2. Step 2: Convert to fraction form
    82,004.22/122,929.29 = 74,700.06/x
  3. Step 3: Cross multiply
    82,004.22x = 122,929.29 × 74,700.06
  4. Step 4: Simplify right side
    82,004.22x = 9,182,825,338.76
  5. Step 5: Solve for x
    x = 9,182,825,338.76/82,004.22
  6. Step 6: Final answer
    x = 111,979.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.