Home / 111,429.45-167,056.70-76,262.49

Finding the Fourth Proportional to 111,429.45, 167,056.70 and 76,262.49

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Solution

The fourth proportional to 111,429.45, 167,056.70 and 76,262.49 is: 114,333.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,429.45 : 167,056.70 = 76,262.49 : x
  2. Step 2: Convert to fraction form
    111,429.45/167,056.70 = 76,262.49/x
  3. Step 3: Cross multiply
    111,429.45x = 167,056.70 × 76,262.49
  4. Step 4: Simplify right side
    111,429.45x = 12,740,159,531.87
  5. Step 5: Solve for x
    x = 12,740,159,531.87/111,429.45
  6. Step 6: Final answer
    x = 114,333.86

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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.