Home / 135,554.14-187,062.43-74,299.85

Finding the Fourth Proportional to 135,554.14, 187,062.43 and 74,299.85

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Solution

The fourth proportional to 135,554.14, 187,062.43 and 74,299.85 is: 102,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,554.14 : 187,062.43 = 74,299.85 : x
  2. Step 2: Convert to fraction form
    135,554.14/187,062.43 = 74,299.85/x
  3. Step 3: Cross multiply
    135,554.14x = 187,062.43 × 74,299.85
  4. Step 4: Simplify right side
    135,554.14x = 13,898,709,182.82
  5. Step 5: Solve for x
    x = 13,898,709,182.82/135,554.14
  6. Step 6: Final answer
    x = 102,532.54

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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.