Home / 257,576.02-386,362.14-80,082.70

Finding the Fourth Proportional to 257,576.02, 386,362.14 and 80,082.70

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Solution

The fourth proportional to 257,576.02, 386,362.14 and 80,082.70 is: 120,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,576.02 : 386,362.14 = 80,082.70 : x
  2. Step 2: Convert to fraction form
    257,576.02/386,362.14 = 80,082.70/x
  3. Step 3: Cross multiply
    257,576.02x = 386,362.14 × 80,082.70
  4. Step 4: Simplify right side
    257,576.02x = 30,940,923,348.98
  5. Step 5: Solve for x
    x = 30,940,923,348.98/257,576.02
  6. Step 6: Final answer
    x = 120,123.46

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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.