Home / 107,121.12-160,781.34-54,569.94

Finding the Fourth Proportional to 107,121.12, 160,781.34 and 54,569.94

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Solution

The fourth proportional to 107,121.12, 160,781.34 and 54,569.94 is: 81,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,121.12 : 160,781.34 = 54,569.94 : x
  2. Step 2: Convert to fraction form
    107,121.12/160,781.34 = 54,569.94/x
  3. Step 3: Cross multiply
    107,121.12x = 160,781.34 × 54,569.94
  4. Step 4: Simplify right side
    107,121.12x = 8,773,828,076.92
  5. Step 5: Solve for x
    x = 8,773,828,076.92/107,121.12
  6. Step 6: Final answer
    x = 81,905.68

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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.