Home / 212,817.95-319,157.46-70,625.03

Finding the Fourth Proportional to 212,817.95, 319,157.46 and 70,625.03

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Solution

The fourth proportional to 212,817.95, 319,157.46 and 70,625.03 is: 105,914.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,817.95 : 319,157.46 = 70,625.03 : x
  2. Step 2: Convert to fraction form
    212,817.95/319,157.46 = 70,625.03/x
  3. Step 3: Cross multiply
    212,817.95x = 319,157.46 × 70,625.03
  4. Step 4: Simplify right side
    212,817.95x = 22,540,505,187.22
  5. Step 5: Solve for x
    x = 22,540,505,187.22/212,817.95
  6. Step 6: Final answer
    x = 105,914.49

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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.