Home / 70,734.11-106,101.18-18,143.59

Finding the Fourth Proportional to 70,734.11, 106,101.18 and 18,143.59

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Solution

The fourth proportional to 70,734.11, 106,101.18 and 18,143.59 is: 27,215.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,734.11 : 106,101.18 = 18,143.59 : x
  2. Step 2: Convert to fraction form
    70,734.11/106,101.18 = 18,143.59/x
  3. Step 3: Cross multiply
    70,734.11x = 106,101.18 × 18,143.59
  4. Step 4: Simplify right side
    70,734.11x = 1,925,056,308.44
  5. Step 5: Solve for x
    x = 1,925,056,308.44/70,734.11
  6. Step 6: Final answer
    x = 27,215.39

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1.5x scale

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.