Home / 143,266.58-197,657.37-81,968

Finding the Fourth Proportional to 143,266.58, 197,657.37 and 81,968

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Solution

The fourth proportional to 143,266.58, 197,657.37 and 81,968 is: 113,086.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,266.58 : 197,657.37 = 81,968 : x
  2. Step 2: Convert to fraction form
    143,266.58/197,657.37 = 81,968/x
  3. Step 3: Cross multiply
    143,266.58x = 197,657.37 × 81,968
  4. Step 4: Simplify right side
    143,266.58x = 16,201,579,304.16
  5. Step 5: Solve for x
    x = 16,201,579,304.16/143,266.58
  6. Step 6: Final answer
    x = 113,086.94

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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.