Home / 106,914.72-147,371.92-84,217.76

Finding the Fourth Proportional to 106,914.72, 147,371.92 and 84,217.76

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Solution

The fourth proportional to 106,914.72, 147,371.92 and 84,217.76 is: 116,086.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,914.72 : 147,371.92 = 84,217.76 : x
  2. Step 2: Convert to fraction form
    106,914.72/147,371.92 = 84,217.76/x
  3. Step 3: Cross multiply
    106,914.72x = 147,371.92 × 84,217.76
  4. Step 4: Simplify right side
    106,914.72x = 12,411,332,989.30
  5. Step 5: Solve for x
    x = 12,411,332,989.30/106,914.72
  6. Step 6: Final answer
    x = 116,086.29

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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.