Home / 129,985.47-194,985.12-41,245.92

Finding the Fourth Proportional to 129,985.47, 194,985.12 and 41,245.92

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Solution

The fourth proportional to 129,985.47, 194,985.12 and 41,245.92 is: 61,871.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,985.47 : 194,985.12 = 41,245.92 : x
  2. Step 2: Convert to fraction form
    129,985.47/194,985.12 = 41,245.92/x
  3. Step 3: Cross multiply
    129,985.47x = 194,985.12 × 41,245.92
  4. Step 4: Simplify right side
    129,985.47x = 8,042,339,479.56
  5. Step 5: Solve for x
    x = 8,042,339,479.56/129,985.47
  6. Step 6: Final answer
    x = 61,871.07

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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.