Home / 82,152.43-122,988.38-74,273.09

Finding the Fourth Proportional to 82,152.43, 122,988.38 and 74,273.09

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Solution

The fourth proportional to 82,152.43, 122,988.38 and 74,273.09 is: 111,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,152.43 : 122,988.38 = 74,273.09 : x
  2. Step 2: Convert to fraction form
    82,152.43/122,988.38 = 74,273.09/x
  3. Step 3: Cross multiply
    82,152.43x = 122,988.38 × 74,273.09
  4. Step 4: Simplify right side
    82,152.43x = 9,134,726,030.39
  5. Step 5: Solve for x
    x = 9,134,726,030.39/82,152.43
  6. Step 6: Final answer
    x = 111,192.41

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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.