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Finding the Fourth Proportional to 129,843, 179,183.34 and 73,253.16

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Solution

The fourth proportional to 129,843, 179,183.34 and 73,253.16 is: 101,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,843 : 179,183.34 = 73,253.16 : x
  2. Step 2: Convert to fraction form
    129,843/179,183.34 = 73,253.16/x
  3. Step 3: Cross multiply
    129,843x = 179,183.34 × 73,253.16
  4. Step 4: Simplify right side
    129,843x = 13,125,745,874.35
  5. Step 5: Solve for x
    x = 13,125,745,874.35/129,843
  6. Step 6: Final answer
    x = 101,089.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.