Home / 168,134.10-252,261.36-72,031

Finding the Fourth Proportional to 168,134.10, 252,261.36 and 72,031

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Solution

The fourth proportional to 168,134.10, 252,261.36 and 72,031 is: 108,072.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,134.10 : 252,261.36 = 72,031 : x
  2. Step 2: Convert to fraction form
    168,134.10/252,261.36 = 72,031/x
  3. Step 3: Cross multiply
    168,134.10x = 252,261.36 × 72,031
  4. Step 4: Simplify right side
    168,134.10x = 18,170,638,022.16
  5. Step 5: Solve for x
    x = 18,170,638,022.16/168,134.10
  6. Step 6: Final answer
    x = 108,072.29

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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.