Home / 129,734.88-179,035.20-76,021.44

Finding the Fourth Proportional to 129,734.88, 179,035.20 and 76,021.44

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Solution

The fourth proportional to 129,734.88, 179,035.20 and 76,021.44 is: 104,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,734.88 : 179,035.20 = 76,021.44 : x
  2. Step 2: Convert to fraction form
    129,734.88/179,035.20 = 76,021.44/x
  3. Step 3: Cross multiply
    129,734.88x = 179,035.20 × 76,021.44
  4. Step 4: Simplify right side
    129,734.88x = 13,610,513,714.69
  5. Step 5: Solve for x
    x = 13,610,513,714.69/129,734.88
  6. Step 6: Final answer
    x = 104,910.21

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1.5x scale

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.