Home / 127,874.28-191,804.61-39,127.85

Finding the Fourth Proportional to 127,874.28, 191,804.61 and 39,127.85

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Solution

The fourth proportional to 127,874.28, 191,804.61 and 39,127.85 is: 58,689.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,874.28 : 191,804.61 = 39,127.85 : x
  2. Step 2: Convert to fraction form
    127,874.28/191,804.61 = 39,127.85/x
  3. Step 3: Cross multiply
    127,874.28x = 191,804.61 × 39,127.85
  4. Step 4: Simplify right side
    127,874.28x = 7,504,902,009.39
  5. Step 5: Solve for x
    x = 7,504,902,009.39/127,874.28
  6. Step 6: Final answer
    x = 58,689.69

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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.