Home / 135,821.46-187,435.25-75,393.30

Finding the Fourth Proportional to 135,821.46, 187,435.25 and 75,393.30

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Solution

The fourth proportional to 135,821.46, 187,435.25 and 75,393.30 is: 104,043.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,821.46 : 187,435.25 = 75,393.30 : x
  2. Step 2: Convert to fraction form
    135,821.46/187,435.25 = 75,393.30/x
  3. Step 3: Cross multiply
    135,821.46x = 187,435.25 × 75,393.30
  4. Step 4: Simplify right side
    135,821.46x = 14,131,362,033.83
  5. Step 5: Solve for x
    x = 14,131,362,033.83/135,821.46
  6. Step 6: Final answer
    x = 104,043.66

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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.