Home / 411,019.04-616,878.48-161,876

Finding the Fourth Proportional to 411,019.04, 616,878.48 and 161,876

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Solution

The fourth proportional to 411,019.04, 616,878.48 and 161,876 is: 242,951.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,019.04 : 616,878.48 = 161,876 : x
  2. Step 2: Convert to fraction form
    411,019.04/616,878.48 = 161,876/x
  3. Step 3: Cross multiply
    411,019.04x = 616,878.48 × 161,876
  4. Step 4: Simplify right side
    411,019.04x = 99,857,820,828.48
  5. Step 5: Solve for x
    x = 99,857,820,828.48/411,019.04
  6. Step 6: Final answer
    x = 242,951.81

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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.