Home / 143,018.10-214,561.83-43,172.32

Finding the Fourth Proportional to 143,018.10, 214,561.83 and 43,172.32

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Solution

The fourth proportional to 143,018.10, 214,561.83 and 43,172.32 is: 64,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,018.10 : 214,561.83 = 43,172.32 : x
  2. Step 2: Convert to fraction form
    143,018.10/214,561.83 = 43,172.32/x
  3. Step 3: Cross multiply
    143,018.10x = 214,561.83 × 43,172.32
  4. Step 4: Simplify right side
    143,018.10x = 9,263,131,984.55
  5. Step 5: Solve for x
    x = 9,263,131,984.55/143,018.10
  6. Step 6: Final answer
    x = 64,768.95

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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.