Home / 149,239.04-205,949.40-82,171.04

Finding the Fourth Proportional to 149,239.04, 205,949.40 and 82,171.04

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Solution

The fourth proportional to 149,239.04, 205,949.40 and 82,171.04 is: 113,395.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,239.04 : 205,949.40 = 82,171.04 : x
  2. Step 2: Convert to fraction form
    149,239.04/205,949.40 = 82,171.04/x
  3. Step 3: Cross multiply
    149,239.04x = 205,949.40 × 82,171.04
  4. Step 4: Simplify right side
    149,239.04x = 16,923,076,385.38
  5. Step 5: Solve for x
    x = 16,923,076,385.38/149,239.04
  6. Step 6: Final answer
    x = 113,395.77

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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.