Home / 129,175.92-193,659.32-40,383.72

Finding the Fourth Proportional to 129,175.92, 193,659.32 and 40,383.72

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Solution

The fourth proportional to 129,175.92, 193,659.32 and 40,383.72 is: 60,542.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,175.92 : 193,659.32 = 40,383.72 : x
  2. Step 2: Convert to fraction form
    129,175.92/193,659.32 = 40,383.72/x
  3. Step 3: Cross multiply
    129,175.92x = 193,659.32 × 40,383.72
  4. Step 4: Simplify right side
    129,175.92x = 7,820,683,855.23
  5. Step 5: Solve for x
    x = 7,820,683,855.23/129,175.92
  6. Step 6: Final answer
    x = 60,542.89

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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.