Home / 105,983.30-146,110.77-84,545.75

Finding the Fourth Proportional to 105,983.30, 146,110.77 and 84,545.75

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Solution

The fourth proportional to 105,983.30, 146,110.77 and 84,545.75 is: 116,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,983.30 : 146,110.77 = 84,545.75 : x
  2. Step 2: Convert to fraction form
    105,983.30/146,110.77 = 84,545.75/x
  3. Step 3: Cross multiply
    105,983.30x = 146,110.77 × 84,545.75
  4. Step 4: Simplify right side
    105,983.30x = 12,353,044,632.73
  5. Step 5: Solve for x
    x = 12,353,044,632.73/105,983.30
  6. Step 6: Final answer
    x = 116,556.52

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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.