Home / 127,478.25-191,221.43-38,732.54

Finding the Fourth Proportional to 127,478.25, 191,221.43 and 38,732.54

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Solution

The fourth proportional to 127,478.25, 191,221.43 and 38,732.54 is: 58,100.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,478.25 : 191,221.43 = 38,732.54 : x
  2. Step 2: Convert to fraction form
    127,478.25/191,221.43 = 38,732.54/x
  3. Step 3: Cross multiply
    127,478.25x = 191,221.43 × 38,732.54
  4. Step 4: Simplify right side
    127,478.25x = 7,406,490,536.56
  5. Step 5: Solve for x
    x = 7,406,490,536.56/127,478.25
  6. Step 6: Final answer
    x = 58,100.03

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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.