Home / 115,412.20-173,141.70-65,516.20

Finding the Fourth Proportional to 115,412.20, 173,141.70 and 65,516.20

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Solution

The fourth proportional to 115,412.20, 173,141.70 and 65,516.20 is: 98,287.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,412.20 : 173,141.70 = 65,516.20 : x
  2. Step 2: Convert to fraction form
    115,412.20/173,141.70 = 65,516.20/x
  3. Step 3: Cross multiply
    115,412.20x = 173,141.70 × 65,516.20
  4. Step 4: Simplify right side
    115,412.20x = 11,343,586,245.54
  5. Step 5: Solve for x
    x = 11,343,586,245.54/115,412.20
  6. Step 6: Final answer
    x = 98,287.58

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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.