Home / 220,606.12-331,018.55-87,483.43

Finding the Fourth Proportional to 220,606.12, 331,018.55 and 87,483.43

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Solution

The fourth proportional to 220,606.12, 331,018.55 and 87,483.43 is: 131,268.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,606.12 : 331,018.55 = 87,483.43 : x
  2. Step 2: Convert to fraction form
    220,606.12/331,018.55 = 87,483.43/x
  3. Step 3: Cross multiply
    220,606.12x = 331,018.55 × 87,483.43
  4. Step 4: Simplify right side
    220,606.12x = 28,958,638,452.05
  5. Step 5: Solve for x
    x = 28,958,638,452.05/220,606.12
  6. Step 6: Final answer
    x = 131,268.52

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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.