Home / 101,645.20-152,453.40-31,531.60

Finding the Fourth Proportional to 101,645.20, 152,453.40 and 31,531.60

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Solution

The fourth proportional to 101,645.20, 152,453.40 and 31,531.60 is: 47,292.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,645.20 : 152,453.40 = 31,531.60 : x
  2. Step 2: Convert to fraction form
    101,645.20/152,453.40 = 31,531.60/x
  3. Step 3: Cross multiply
    101,645.20x = 152,453.40 × 31,531.60
  4. Step 4: Simplify right side
    101,645.20x = 4,807,099,627.44
  5. Step 5: Solve for x
    x = 4,807,099,627.44/101,645.20
  6. Step 6: Final answer
    x = 47,292.93

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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.