Home / 104,189.36-143,781.17-56,442.89

Finding the Fourth Proportional to 104,189.36, 143,781.17 and 56,442.89

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Solution

The fourth proportional to 104,189.36, 143,781.17 and 56,442.89 is: 77,891.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,189.36 : 143,781.17 = 56,442.89 : x
  2. Step 2: Convert to fraction form
    104,189.36/143,781.17 = 56,442.89/x
  3. Step 3: Cross multiply
    104,189.36x = 143,781.17 × 56,442.89
  4. Step 4: Simplify right side
    104,189.36x = 8,115,424,839.62
  5. Step 5: Solve for x
    x = 8,115,424,839.62/104,189.36
  6. Step 6: Final answer
    x = 77,891.11

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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.