Home / 109,631.60-164,418.84-46,419.20

Finding the Fourth Proportional to 109,631.60, 164,418.84 and 46,419.20

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Solution

The fourth proportional to 109,631.60, 164,418.84 and 46,419.20 is: 69,616.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,631.60 : 164,418.84 = 46,419.20 : x
  2. Step 2: Convert to fraction form
    109,631.60/164,418.84 = 46,419.20/x
  3. Step 3: Cross multiply
    109,631.60x = 164,418.84 × 46,419.20
  4. Step 4: Simplify right side
    109,631.60x = 7,632,191,017.73
  5. Step 5: Solve for x
    x = 7,632,191,017.73/109,631.60
  6. Step 6: Final answer
    x = 69,616.71

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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.