Home / 159,205.24-219,704.66-86,609.72

Finding the Fourth Proportional to 159,205.24, 219,704.66 and 86,609.72

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Solution

The fourth proportional to 159,205.24, 219,704.66 and 86,609.72 is: 119,522.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,205.24 : 219,704.66 = 86,609.72 : x
  2. Step 2: Convert to fraction form
    159,205.24/219,704.66 = 86,609.72/x
  3. Step 3: Cross multiply
    159,205.24x = 219,704.66 × 86,609.72
  4. Step 4: Simplify right side
    159,205.24x = 19,028,558,776.43
  5. Step 5: Solve for x
    x = 19,028,558,776.43/159,205.24
  6. Step 6: Final answer
    x = 119,522.19

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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.