Home / 135,917.04-187,563.12-75,485.36

Finding the Fourth Proportional to 135,917.04, 187,563.12 and 75,485.36

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Solution

The fourth proportional to 135,917.04, 187,563.12 and 75,485.36 is: 104,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,917.04 : 187,563.12 = 75,485.36 : x
  2. Step 2: Convert to fraction form
    135,917.04/187,563.12 = 75,485.36/x
  3. Step 3: Cross multiply
    135,917.04x = 187,563.12 × 75,485.36
  4. Step 4: Simplify right side
    135,917.04x = 14,158,269,635.92
  5. Step 5: Solve for x
    x = 14,158,269,635.92/135,917.04
  6. Step 6: Final answer
    x = 104,168.47

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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.