Home / 158,828.64-219,183.75-87,213.22

Finding the Fourth Proportional to 158,828.64, 219,183.75 and 87,213.22

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Solution

The fourth proportional to 158,828.64, 219,183.75 and 87,213.22 is: 120,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,828.64 : 219,183.75 = 87,213.22 : x
  2. Step 2: Convert to fraction form
    158,828.64/219,183.75 = 87,213.22/x
  3. Step 3: Cross multiply
    158,828.64x = 219,183.75 × 87,213.22
  4. Step 4: Simplify right side
    158,828.64x = 19,115,720,609.18
  5. Step 5: Solve for x
    x = 19,115,720,609.18/158,828.64
  6. Step 6: Final answer
    x = 120,354.37

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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.