Home / 106,140.77-146,484.60-79,236.56

Finding the Fourth Proportional to 106,140.77, 146,484.60 and 79,236.56

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Solution

The fourth proportional to 106,140.77, 146,484.60 and 79,236.56 is: 109,354.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,140.77 : 146,484.60 = 79,236.56 : x
  2. Step 2: Convert to fraction form
    106,140.77/146,484.60 = 79,236.56/x
  3. Step 3: Cross multiply
    106,140.77x = 146,484.60 × 79,236.56
  4. Step 4: Simplify right side
    106,140.77x = 11,606,935,796.98
  5. Step 5: Solve for x
    x = 11,606,935,796.98/106,140.77
  6. Step 6: Final answer
    x = 109,354.17

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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.