Home / 129,605.34-194,435.14-54,725.70

Finding the Fourth Proportional to 129,605.34, 194,435.14 and 54,725.70

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Solution

The fourth proportional to 129,605.34, 194,435.14 and 54,725.70 is: 82,100.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,605.34 : 194,435.14 = 54,725.70 : x
  2. Step 2: Convert to fraction form
    129,605.34/194,435.14 = 54,725.70/x
  3. Step 3: Cross multiply
    129,605.34x = 194,435.14 × 54,725.70
  4. Step 4: Simplify right side
    129,605.34x = 10,640,599,141.10
  5. Step 5: Solve for x
    x = 10,640,599,141.10/129,605.34
  6. Step 6: Final answer
    x = 82,100.01

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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.