Home / 76,959.21-106,180.56-74,422.29

Finding the Fourth Proportional to 76,959.21, 106,180.56 and 74,422.29

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Solution

The fourth proportional to 76,959.21, 106,180.56 and 74,422.29 is: 102,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,959.21 : 106,180.56 = 74,422.29 : x
  2. Step 2: Convert to fraction form
    76,959.21/106,180.56 = 74,422.29/x
  3. Step 3: Cross multiply
    76,959.21x = 106,180.56 × 74,422.29
  4. Step 4: Simplify right side
    76,959.21x = 7,902,200,428.68
  5. Step 5: Solve for x
    x = 7,902,200,428.68/76,959.21
  6. Step 6: Final answer
    x = 102,680.37

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1.5x scale

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.