Home / 117,929.56-162,740.46-64,215.22

Finding the Fourth Proportional to 117,929.56, 162,740.46 and 64,215.22

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Solution

The fourth proportional to 117,929.56, 162,740.46 and 64,215.22 is: 88,615.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,929.56 : 162,740.46 = 64,215.22 : x
  2. Step 2: Convert to fraction form
    117,929.56/162,740.46 = 64,215.22/x
  3. Step 3: Cross multiply
    117,929.56x = 162,740.46 × 64,215.22
  4. Step 4: Simplify right side
    117,929.56x = 10,450,414,441.80
  5. Step 5: Solve for x
    x = 10,450,414,441.80/117,929.56
  6. Step 6: Final answer
    x = 88,615.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.