Home / 106,186.20-146,539.90-57,788.57

Finding the Fourth Proportional to 106,186.20, 146,539.90 and 57,788.57

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Solution

The fourth proportional to 106,186.20, 146,539.90 and 57,788.57 is: 79,749.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,186.20 : 146,539.90 = 57,788.57 : x
  2. Step 2: Convert to fraction form
    106,186.20/146,539.90 = 57,788.57/x
  3. Step 3: Cross multiply
    106,186.20x = 146,539.90 × 57,788.57
  4. Step 4: Simplify right side
    106,186.20x = 8,468,331,913.60
  5. Step 5: Solve for x
    x = 8,468,331,913.60/106,186.20
  6. Step 6: Final answer
    x = 79,749.83

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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.