Home / 158,849.05-219,213.21-87,230.57

Finding the Fourth Proportional to 158,849.05, 219,213.21 and 87,230.57

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Solution

The fourth proportional to 158,849.05, 219,213.21 and 87,230.57 is: 120,379.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,849.05 : 219,213.21 = 87,230.57 : x
  2. Step 2: Convert to fraction form
    158,849.05/219,213.21 = 87,230.57/x
  3. Step 3: Cross multiply
    158,849.05x = 219,213.21 × 87,230.57
  4. Step 4: Simplify right side
    158,849.05x = 19,122,093,259.83
  5. Step 5: Solve for x
    x = 19,122,093,259.83/158,849.05
  6. Step 6: Final answer
    x = 120,379.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.