Home / 109,948.11-164,921.76-39,811.02

Finding the Fourth Proportional to 109,948.11, 164,921.76 and 39,811.02

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Solution

The fourth proportional to 109,948.11, 164,921.76 and 39,811.02 is: 59,716.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,948.11 : 164,921.76 = 39,811.02 : x
  2. Step 2: Convert to fraction form
    109,948.11/164,921.76 = 39,811.02/x
  3. Step 3: Cross multiply
    109,948.11x = 164,921.76 × 39,811.02
  4. Step 4: Simplify right side
    109,948.11x = 6,565,703,485.80
  5. Step 5: Solve for x
    x = 6,565,703,485.80/109,948.11
  6. Step 6: Final answer
    x = 59,716.38

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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.