Home / 149,719.24-206,600.14-85,171.30

Finding the Fourth Proportional to 149,719.24, 206,600.14 and 85,171.30

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Solution

The fourth proportional to 149,719.24, 206,600.14 and 85,171.30 is: 117,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,719.24 : 206,600.14 = 85,171.30 : x
  2. Step 2: Convert to fraction form
    149,719.24/206,600.14 = 85,171.30/x
  3. Step 3: Cross multiply
    149,719.24x = 206,600.14 × 85,171.30
  4. Step 4: Simplify right side
    149,719.24x = 17,596,403,028.39
  5. Step 5: Solve for x
    x = 17,596,403,028.39/149,719.24
  6. Step 6: Final answer
    x = 117,529.34

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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.