Home / 129,903.20-194,814.30-51,041.60

Finding the Fourth Proportional to 129,903.20, 194,814.30 and 51,041.60

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Solution

The fourth proportional to 129,903.20, 194,814.30 and 51,041.60 is: 76,546.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,903.20 : 194,814.30 = 51,041.60 : x
  2. Step 2: Convert to fraction form
    129,903.20/194,814.30 = 51,041.60/x
  3. Step 3: Cross multiply
    129,903.20x = 194,814.30 × 51,041.60
  4. Step 4: Simplify right side
    129,903.20x = 9,943,633,574.88
  5. Step 5: Solve for x
    x = 9,943,633,574.88/129,903.20
  6. Step 6: Final answer
    x = 76,546.49

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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.