Home / 143,018.66-214,562.67-43,172.89

Finding the Fourth Proportional to 143,018.66, 214,562.67 and 43,172.89

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Solution

The fourth proportional to 143,018.66, 214,562.67 and 43,172.89 is: 64,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,018.66 : 214,562.67 = 43,172.89 : x
  2. Step 2: Convert to fraction form
    143,018.66/214,562.67 = 43,172.89/x
  3. Step 3: Cross multiply
    143,018.66x = 214,562.67 × 43,172.89
  4. Step 4: Simplify right side
    143,018.66x = 9,263,290,550.02
  5. Step 5: Solve for x
    x = 9,263,290,550.02/143,018.66
  6. Step 6: Final answer
    x = 64,769.80

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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.