Home / 129,115.74-193,684.77-35,621.49

Finding the Fourth Proportional to 129,115.74, 193,684.77 and 35,621.49

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Solution

The fourth proportional to 129,115.74, 193,684.77 and 35,621.49 is: 53,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,115.74 : 193,684.77 = 35,621.49 : x
  2. Step 2: Convert to fraction form
    129,115.74/193,684.77 = 35,621.49/x
  3. Step 3: Cross multiply
    129,115.74x = 193,684.77 × 35,621.49
  4. Step 4: Simplify right side
    129,115.74x = 6,899,340,097.71
  5. Step 5: Solve for x
    x = 6,899,340,097.71/129,115.74
  6. Step 6: Final answer
    x = 53,435.31

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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.