Home / 105,016-157,531.88-30,135.52

Finding the Fourth Proportional to 105,016, 157,531.88 and 30,135.52

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Solution

The fourth proportional to 105,016, 157,531.88 and 30,135.52 is: 45,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,016 : 157,531.88 = 30,135.52 : x
  2. Step 2: Convert to fraction form
    105,016/157,531.88 = 30,135.52/x
  3. Step 3: Cross multiply
    105,016x = 157,531.88 × 30,135.52
  4. Step 4: Simplify right side
    105,016x = 4,747,305,120.38
  5. Step 5: Solve for x
    x = 4,747,305,120.38/105,016
  6. Step 6: Final answer
    x = 45,205.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.