Home / 124,114.20-186,171.30-82,123.80

Finding the Fourth Proportional to 124,114.20, 186,171.30 and 82,123.80

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Solution

The fourth proportional to 124,114.20, 186,171.30 and 82,123.80 is: 123,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,114.20 : 186,171.30 = 82,123.80 : x
  2. Step 2: Convert to fraction form
    124,114.20/186,171.30 = 82,123.80/x
  3. Step 3: Cross multiply
    124,114.20x = 186,171.30 × 82,123.80
  4. Step 4: Simplify right side
    124,114.20x = 15,289,094,606.94
  5. Step 5: Solve for x
    x = 15,289,094,606.94/124,114.20
  6. Step 6: Final answer
    x = 123,185.70

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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.