Home / 123,744.32-170,638.08-73,433.60

Finding the Fourth Proportional to 123,744.32, 170,638.08 and 73,433.60

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Solution

The fourth proportional to 123,744.32, 170,638.08 and 73,433.60 is: 101,261.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,744.32 : 170,638.08 = 73,433.60 : x
  2. Step 2: Convert to fraction form
    123,744.32/170,638.08 = 73,433.60/x
  3. Step 3: Cross multiply
    123,744.32x = 170,638.08 × 73,433.60
  4. Step 4: Simplify right side
    123,744.32x = 12,530,568,511.49
  5. Step 5: Solve for x
    x = 12,530,568,511.49/123,744.32
  6. Step 6: Final answer
    x = 101,261.77

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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.