Home / 106,431.48-146,876.44-58,686.54

Finding the Fourth Proportional to 106,431.48, 146,876.44 and 58,686.54

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Solution

The fourth proportional to 106,431.48, 146,876.44 and 58,686.54 is: 80,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,431.48 : 146,876.44 = 58,686.54 : x
  2. Step 2: Convert to fraction form
    106,431.48/146,876.44 = 58,686.54/x
  3. Step 3: Cross multiply
    106,431.48x = 146,876.44 × 58,686.54
  4. Step 4: Simplify right side
    106,431.48x = 8,619,670,071.12
  5. Step 5: Solve for x
    x = 8,619,670,071.12/106,431.48
  6. Step 6: Final answer
    x = 80,987.98

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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.