Home / 135,174.21-186,538.46-74,743.52

Finding the Fourth Proportional to 135,174.21, 186,538.46 and 74,743.52

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Solution

The fourth proportional to 135,174.21, 186,538.46 and 74,743.52 is: 103,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,174.21 : 186,538.46 = 74,743.52 : x
  2. Step 2: Convert to fraction form
    135,174.21/186,538.46 = 74,743.52/x
  3. Step 3: Cross multiply
    135,174.21x = 186,538.46 × 74,743.52
  4. Step 4: Simplify right side
    135,174.21x = 13,942,541,768.98
  5. Step 5: Solve for x
    x = 13,942,541,768.98/135,174.21
  6. Step 6: Final answer
    x = 103,144.98

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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.