Home / 129,936.54-179,320.96-82,172.46

Finding the Fourth Proportional to 129,936.54, 179,320.96 and 82,172.46

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Solution

The fourth proportional to 129,936.54, 179,320.96 and 82,172.46 is: 113,403.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,936.54 : 179,320.96 = 82,172.46 : x
  2. Step 2: Convert to fraction form
    129,936.54/179,320.96 = 82,172.46/x
  3. Step 3: Cross multiply
    129,936.54x = 179,320.96 × 82,172.46
  4. Step 4: Simplify right side
    129,936.54x = 14,735,244,412.76
  5. Step 5: Solve for x
    x = 14,735,244,412.76/129,936.54
  6. Step 6: Final answer
    x = 113,403.39

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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.