Home / 127,686.36-191,529.03-38,939.61

Finding the Fourth Proportional to 127,686.36, 191,529.03 and 38,939.61

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Solution

The fourth proportional to 127,686.36, 191,529.03 and 38,939.61 is: 58,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,686.36 : 191,529.03 = 38,939.61 : x
  2. Step 2: Convert to fraction form
    127,686.36/191,529.03 = 38,939.61/x
  3. Step 3: Cross multiply
    127,686.36x = 191,529.03 × 38,939.61
  4. Step 4: Simplify right side
    127,686.36x = 7,458,065,731.88
  5. Step 5: Solve for x
    x = 7,458,065,731.88/127,686.36
  6. Step 6: Final answer
    x = 58,409.26

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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.