Home / 104,515.88-156,576.22-81,027.24

Finding the Fourth Proportional to 104,515.88, 156,576.22 and 81,027.24

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Solution

The fourth proportional to 104,515.88, 156,576.22 and 81,027.24 is: 121,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,515.88 : 156,576.22 = 81,027.24 : x
  2. Step 2: Convert to fraction form
    104,515.88/156,576.22 = 81,027.24/x
  3. Step 3: Cross multiply
    104,515.88x = 156,576.22 × 81,027.24
  4. Step 4: Simplify right side
    104,515.88x = 12,686,938,956.23
  5. Step 5: Solve for x
    x = 12,686,938,956.23/104,515.88
  6. Step 6: Final answer
    x = 121,387.67

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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.