Home / 129,160.15-193,743.86-35,665.90

Finding the Fourth Proportional to 129,160.15, 193,743.86 and 35,665.90

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Solution

The fourth proportional to 129,160.15, 193,743.86 and 35,665.90 is: 53,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,160.15 : 193,743.86 = 35,665.90 : x
  2. Step 2: Convert to fraction form
    129,160.15/193,743.86 = 35,665.90/x
  3. Step 3: Cross multiply
    129,160.15x = 193,743.86 × 35,665.90
  4. Step 4: Simplify right side
    129,160.15x = 6,910,049,136.37
  5. Step 5: Solve for x
    x = 6,910,049,136.37/129,160.15
  6. Step 6: Final answer
    x = 53,499.85

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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.