Home / 129,316.05-193,974.30-40,576.37

Finding the Fourth Proportional to 129,316.05, 193,974.30 and 40,576.37

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Solution

The fourth proportional to 129,316.05, 193,974.30 and 40,576.37 is: 60,864.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,316.05 : 193,974.30 = 40,576.37 : x
  2. Step 2: Convert to fraction form
    129,316.05/193,974.30 = 40,576.37/x
  3. Step 3: Cross multiply
    129,316.05x = 193,974.30 × 40,576.37
  4. Step 4: Simplify right side
    129,316.05x = 7,870,771,997.42
  5. Step 5: Solve for x
    x = 7,870,771,997.42/129,316.05
  6. Step 6: Final answer
    x = 60,864.62

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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.