Home / 202,901.20-280,063.94-131,279.40

Finding the Fourth Proportional to 202,901.20, 280,063.94 and 131,279.40

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Solution

The fourth proportional to 202,901.20, 280,063.94 and 131,279.40 is: 181,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,901.20 : 280,063.94 = 131,279.40 : x
  2. Step 2: Convert to fraction form
    202,901.20/280,063.94 = 131,279.40/x
  3. Step 3: Cross multiply
    202,901.20x = 280,063.94 × 131,279.40
  4. Step 4: Simplify right side
    202,901.20x = 36,766,626,004.84
  5. Step 5: Solve for x
    x = 36,766,626,004.84/202,901.20
  6. Step 6: Final answer
    x = 181,204.58

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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.