Home / 135,913.82-187,562.25-75,485.52

Finding the Fourth Proportional to 135,913.82, 187,562.25 and 75,485.52

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Solution

The fourth proportional to 135,913.82, 187,562.25 and 75,485.52 is: 104,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,913.82 : 187,562.25 = 75,485.52 : x
  2. Step 2: Convert to fraction form
    135,913.82/187,562.25 = 75,485.52/x
  3. Step 3: Cross multiply
    135,913.82x = 187,562.25 × 75,485.52
  4. Step 4: Simplify right side
    135,913.82x = 14,158,233,973.62
  5. Step 5: Solve for x
    x = 14,158,233,973.62/135,913.82
  6. Step 6: Final answer
    x = 104,170.68

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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.