Home / 109,554.14-164,399.24-70,139.54

Finding the Fourth Proportional to 109,554.14, 164,399.24 and 70,139.54

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Solution

The fourth proportional to 109,554.14, 164,399.24 and 70,139.54 is: 105,252.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,554.14 : 164,399.24 = 70,139.54 : x
  2. Step 2: Convert to fraction form
    109,554.14/164,399.24 = 70,139.54/x
  3. Step 3: Cross multiply
    109,554.14x = 164,399.24 × 70,139.54
  4. Step 4: Simplify right side
    109,554.14x = 11,530,887,069.95
  5. Step 5: Solve for x
    x = 11,530,887,069.95/109,554.14
  6. Step 6: Final answer
    x = 105,252.86

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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.