Home / 129,109.72-193,664.40-44,869.88

Finding the Fourth Proportional to 129,109.72, 193,664.40 and 44,869.88

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Solution

The fourth proportional to 129,109.72, 193,664.40 and 44,869.88 is: 67,304.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,109.72 : 193,664.40 = 44,869.88 : x
  2. Step 2: Convert to fraction form
    129,109.72/193,664.40 = 44,869.88/x
  3. Step 3: Cross multiply
    129,109.72x = 193,664.40 × 44,869.88
  4. Step 4: Simplify right side
    129,109.72x = 8,689,698,388.27
  5. Step 5: Solve for x
    x = 8,689,698,388.27/129,109.72
  6. Step 6: Final answer
    x = 67,304.76

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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.