Home / 172,072.08-258,174.34-83,318.76

Finding the Fourth Proportional to 172,072.08, 258,174.34 and 83,318.76

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Solution

The fourth proportional to 172,072.08, 258,174.34 and 83,318.76 is: 125,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,072.08 : 258,174.34 = 83,318.76 : x
  2. Step 2: Convert to fraction form
    172,072.08/258,174.34 = 83,318.76/x
  3. Step 3: Cross multiply
    172,072.08x = 258,174.34 × 83,318.76
  4. Step 4: Simplify right side
    172,072.08x = 21,510,765,872.62
  5. Step 5: Solve for x
    x = 21,510,765,872.62/172,072.08
  6. Step 6: Final answer
    x = 125,010.20

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1.5x scale

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.