Home / 172,247.45-258,313.68-72,389.03

Finding the Fourth Proportional to 172,247.45, 258,313.68 and 72,389.03

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Solution

The fourth proportional to 172,247.45, 258,313.68 and 72,389.03 is: 108,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,247.45 : 258,313.68 = 72,389.03 : x
  2. Step 2: Convert to fraction form
    172,247.45/258,313.68 = 72,389.03/x
  3. Step 3: Cross multiply
    172,247.45x = 258,313.68 × 72,389.03
  4. Step 4: Simplify right side
    172,247.45x = 18,699,075,439.36
  5. Step 5: Solve for x
    x = 18,699,075,439.36/172,247.45
  6. Step 6: Final answer
    x = 108,559.38

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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.