Home / 129,081.68-193,698.36-54,196.06

Finding the Fourth Proportional to 129,081.68, 193,698.36 and 54,196.06

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Solution

The fourth proportional to 129,081.68, 193,698.36 and 54,196.06 is: 81,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,081.68 : 193,698.36 = 54,196.06 : x
  2. Step 2: Convert to fraction form
    129,081.68/193,698.36 = 54,196.06/x
  3. Step 3: Cross multiply
    129,081.68x = 193,698.36 × 54,196.06
  4. Step 4: Simplify right side
    129,081.68x = 10,497,688,516.60
  5. Step 5: Solve for x
    x = 10,497,688,516.60/129,081.68
  6. Step 6: Final answer
    x = 81,325.94

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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.