Home / 279,485.02-419,227.67-89,945.37

Finding the Fourth Proportional to 279,485.02, 419,227.67 and 89,945.37

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Solution

The fourth proportional to 279,485.02, 419,227.67 and 89,945.37 is: 134,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,485.02 : 419,227.67 = 89,945.37 : x
  2. Step 2: Convert to fraction form
    279,485.02/419,227.67 = 89,945.37/x
  3. Step 3: Cross multiply
    279,485.02x = 419,227.67 × 89,945.37
  4. Step 4: Simplify right side
    279,485.02x = 37,707,587,611.31
  5. Step 5: Solve for x
    x = 37,707,587,611.31/279,485.02
  6. Step 6: Final answer
    x = 134,918.10

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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.