Home / 104,354.82-156,288.78-76,205.16

Finding the Fourth Proportional to 104,354.82, 156,288.78 and 76,205.16

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Solution

The fourth proportional to 104,354.82, 156,288.78 and 76,205.16 is: 114,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,354.82 : 156,288.78 = 76,205.16 : x
  2. Step 2: Convert to fraction form
    104,354.82/156,288.78 = 76,205.16/x
  3. Step 3: Cross multiply
    104,354.82x = 156,288.78 × 76,205.16
  4. Step 4: Simplify right side
    104,354.82x = 11,910,011,486.10
  5. Step 5: Solve for x
    x = 11,910,011,486.10/104,354.82
  6. Step 6: Final answer
    x = 114,129.96

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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.