Home / 127,618.21-191,454.99-38,869.39

Finding the Fourth Proportional to 127,618.21, 191,454.99 and 38,869.39

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Solution

The fourth proportional to 127,618.21, 191,454.99 and 38,869.39 is: 58,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,618.21 : 191,454.99 = 38,869.39 : x
  2. Step 2: Convert to fraction form
    127,618.21/191,454.99 = 38,869.39/x
  3. Step 3: Cross multiply
    127,618.21x = 191,454.99 × 38,869.39
  4. Step 4: Simplify right side
    127,618.21x = 7,441,738,049.36
  5. Step 5: Solve for x
    x = 7,441,738,049.36/127,618.21
  6. Step 6: Final answer
    x = 58,312.51

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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.