Home / 127,634.21-191,479.86-38,894.66

Finding the Fourth Proportional to 127,634.21, 191,479.86 and 38,894.66

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Solution

The fourth proportional to 127,634.21, 191,479.86 and 38,894.66 is: 58,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,634.21 : 191,479.86 = 38,894.66 : x
  2. Step 2: Convert to fraction form
    127,634.21/191,479.86 = 38,894.66/x
  3. Step 3: Cross multiply
    127,634.21x = 191,479.86 × 38,894.66
  4. Step 4: Simplify right side
    127,634.21x = 7,447,543,094.15
  5. Step 5: Solve for x
    x = 7,447,543,094.15/127,634.21
  6. Step 6: Final answer
    x = 58,350.68

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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.