Home / 172,977.12-259,476.62-73,118.70

Finding the Fourth Proportional to 172,977.12, 259,476.62 and 73,118.70

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Solution

The fourth proportional to 172,977.12, 259,476.62 and 73,118.70 is: 109,682.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,977.12 : 259,476.62 = 73,118.70 : x
  2. Step 2: Convert to fraction form
    172,977.12/259,476.62 = 73,118.70/x
  3. Step 3: Cross multiply
    172,977.12x = 259,476.62 × 73,118.70
  4. Step 4: Simplify right side
    172,977.12x = 18,972,592,769.20
  5. Step 5: Solve for x
    x = 18,972,592,769.20/172,977.12
  6. Step 6: Final answer
    x = 109,682.67

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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.