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Finding the Fourth Proportional to 109,322.40, 164,012.40 and 39,194.40

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Solution

The fourth proportional to 109,322.40, 164,012.40 and 39,194.40 is: 58,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,322.40 : 164,012.40 = 39,194.40 : x
  2. Step 2: Convert to fraction form
    109,322.40/164,012.40 = 39,194.40/x
  3. Step 3: Cross multiply
    109,322.40x = 164,012.40 × 39,194.40
  4. Step 4: Simplify right side
    109,322.40x = 6,428,367,610.56
  5. Step 5: Solve for x
    x = 6,428,367,610.56/109,322.40
  6. Step 6: Final answer
    x = 58,801.93

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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.