Home / 106,107.84-146,429.56-57,709.76

Finding the Fourth Proportional to 106,107.84, 146,429.56 and 57,709.76

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Solution

The fourth proportional to 106,107.84, 146,429.56 and 57,709.76 is: 79,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,107.84 : 146,429.56 = 57,709.76 : x
  2. Step 2: Convert to fraction form
    106,107.84/146,429.56 = 57,709.76/x
  3. Step 3: Cross multiply
    106,107.84x = 146,429.56 × 57,709.76
  4. Step 4: Simplify right side
    106,107.84x = 8,450,414,764.51
  5. Step 5: Solve for x
    x = 8,450,414,764.51/106,107.84
  6. Step 6: Final answer
    x = 79,639.87

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1.5x scale

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.