Home / 129,719.40-194,732.70-73,604.20

Finding the Fourth Proportional to 129,719.40, 194,732.70 and 73,604.20

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Solution

The fourth proportional to 129,719.40, 194,732.70 and 73,604.20 is: 110,493.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,719.40 : 194,732.70 = 73,604.20 : x
  2. Step 2: Convert to fraction form
    129,719.40/194,732.70 = 73,604.20/x
  3. Step 3: Cross multiply
    129,719.40x = 194,732.70 × 73,604.20
  4. Step 4: Simplify right side
    129,719.40x = 14,333,144,597.34
  5. Step 5: Solve for x
    x = 14,333,144,597.34/129,719.40
  6. Step 6: Final answer
    x = 110,493.45

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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.