Home / 116,170.50-160,321.74-65,199.36

Finding the Fourth Proportional to 116,170.50, 160,321.74 and 65,199.36

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Solution

The fourth proportional to 116,170.50, 160,321.74 and 65,199.36 is: 89,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,170.50 : 160,321.74 = 65,199.36 : x
  2. Step 2: Convert to fraction form
    116,170.50/160,321.74 = 65,199.36/x
  3. Step 3: Cross multiply
    116,170.50x = 160,321.74 × 65,199.36
  4. Step 4: Simplify right side
    116,170.50x = 10,452,874,842.09
  5. Step 5: Solve for x
    x = 10,452,874,842.09/116,170.50
  6. Step 6: Final answer
    x = 89,978.74

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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.