Home / 109,817.30-164,920.35-84,917.90

Finding the Fourth Proportional to 109,817.30, 164,920.35 and 84,917.90

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Solution

The fourth proportional to 109,817.30, 164,920.35 and 84,917.90 is: 127,527.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,817.30 : 164,920.35 = 84,917.90 : x
  2. Step 2: Convert to fraction form
    109,817.30/164,920.35 = 84,917.90/x
  3. Step 3: Cross multiply
    109,817.30x = 164,920.35 × 84,917.90
  4. Step 4: Simplify right side
    109,817.30x = 14,004,689,789.27
  5. Step 5: Solve for x
    x = 14,004,689,789.27/109,817.30
  6. Step 6: Final answer
    x = 127,527.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.