Home / 104,430.94-156,408.68-81,800.36

Finding the Fourth Proportional to 104,430.94, 156,408.68 and 81,800.36

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Solution

The fourth proportional to 104,430.94, 156,408.68 and 81,800.36 is: 122,514.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,430.94 : 156,408.68 = 81,800.36 : x
  2. Step 2: Convert to fraction form
    104,430.94/156,408.68 = 81,800.36/x
  3. Step 3: Cross multiply
    104,430.94x = 156,408.68 × 81,800.36
  4. Step 4: Simplify right side
    104,430.94x = 12,794,286,331.12
  5. Step 5: Solve for x
    x = 12,794,286,331.12/104,430.94
  6. Step 6: Final answer
    x = 122,514.33

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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.