Home / 129,871.40-194,807.10-41,131.85

Finding the Fourth Proportional to 129,871.40, 194,807.10 and 41,131.85

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Solution

The fourth proportional to 129,871.40, 194,807.10 and 41,131.85 is: 61,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,871.40 : 194,807.10 = 41,131.85 : x
  2. Step 2: Convert to fraction form
    129,871.40/194,807.10 = 41,131.85/x
  3. Step 3: Cross multiply
    129,871.40x = 194,807.10 × 41,131.85
  4. Step 4: Simplify right side
    129,871.40x = 8,012,776,416.14
  5. Step 5: Solve for x
    x = 8,012,776,416.14/129,871.40
  6. Step 6: Final answer
    x = 61,697.78

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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.