Home / 148,889.09-205,574.21-91,605.48

Finding the Fourth Proportional to 148,889.09, 205,574.21 and 91,605.48

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Solution

The fourth proportional to 148,889.09, 205,574.21 and 91,605.48 is: 126,481.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,889.09 : 205,574.21 = 91,605.48 : x
  2. Step 2: Convert to fraction form
    148,889.09/205,574.21 = 91,605.48/x
  3. Step 3: Cross multiply
    148,889.09x = 205,574.21 × 91,605.48
  4. Step 4: Simplify right side
    148,889.09x = 18,831,723,724.64
  5. Step 5: Solve for x
    x = 18,831,723,724.64/148,889.09
  6. Step 6: Final answer
    x = 126,481.56

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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.