Home / 109,155.12-163,732.68-39,054.48

Finding the Fourth Proportional to 109,155.12, 163,732.68 and 39,054.48

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Solution

The fourth proportional to 109,155.12, 163,732.68 and 39,054.48 is: 58,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,155.12 : 163,732.68 = 39,054.48 : x
  2. Step 2: Convert to fraction form
    109,155.12/163,732.68 = 39,054.48/x
  3. Step 3: Cross multiply
    109,155.12x = 163,732.68 × 39,054.48
  4. Step 4: Simplify right side
    109,155.12x = 6,394,494,676.41
  5. Step 5: Solve for x
    x = 6,394,494,676.41/109,155.12
  6. Step 6: Final answer
    x = 58,581.72

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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.