Home / 111,335.44-166,828-86,096.56

Finding the Fourth Proportional to 111,335.44, 166,828 and 86,096.56

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Solution

The fourth proportional to 111,335.44, 166,828 and 86,096.56 is: 129,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,335.44 : 166,828 = 86,096.56 : x
  2. Step 2: Convert to fraction form
    111,335.44/166,828 = 86,096.56/x
  3. Step 3: Cross multiply
    111,335.44x = 166,828 × 86,096.56
  4. Step 4: Simplify right side
    111,335.44x = 14,363,316,911.68
  5. Step 5: Solve for x
    x = 14,363,316,911.68/111,335.44
  6. Step 6: Final answer
    x = 129,009.39

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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.