Home / 109,803.40-164,713.20-39,673.60

Finding the Fourth Proportional to 109,803.40, 164,713.20 and 39,673.60

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Solution

The fourth proportional to 109,803.40, 164,713.20 and 39,673.60 is: 59,513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,803.40 : 164,713.20 = 39,673.60 : x
  2. Step 2: Convert to fraction form
    109,803.40/164,713.20 = 39,673.60/x
  3. Step 3: Cross multiply
    109,803.40x = 164,713.20 × 39,673.60
  4. Step 4: Simplify right side
    109,803.40x = 6,534,765,611.52
  5. Step 5: Solve for x
    x = 6,534,765,611.52/109,803.40
  6. Step 6: Final answer
    x = 59,513.33

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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.