Home / 149,308.05-206,045.07-82,240.05

Finding the Fourth Proportional to 149,308.05, 206,045.07 and 82,240.05

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Solution

The fourth proportional to 149,308.05, 206,045.07 and 82,240.05 is: 113,491.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,308.05 : 206,045.07 = 82,240.05 : x
  2. Step 2: Convert to fraction form
    149,308.05/206,045.07 = 82,240.05/x
  3. Step 3: Cross multiply
    149,308.05x = 206,045.07 × 82,240.05
  4. Step 4: Simplify right side
    149,308.05x = 16,945,156,859.05
  5. Step 5: Solve for x
    x = 16,945,156,859.05/149,308.05
  6. Step 6: Final answer
    x = 113,491.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.