Home / 401,080.70-601,755.03-131,221.19

Finding the Fourth Proportional to 401,080.70, 601,755.03 and 131,221.19

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Solution

The fourth proportional to 401,080.70, 601,755.03 and 131,221.19 is: 196,875.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,080.70 : 601,755.03 = 131,221.19 : x
  2. Step 2: Convert to fraction form
    401,080.70/601,755.03 = 131,221.19/x
  3. Step 3: Cross multiply
    401,080.70x = 601,755.03 × 131,221.19
  4. Step 4: Simplify right side
    401,080.70x = 78,963,011,125.09
  5. Step 5: Solve for x
    x = 78,963,011,125.09/401,080.70
  6. Step 6: Final answer
    x = 196,875.62

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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.