Home / 117,435.41-162,102.89-69,688.75

Finding the Fourth Proportional to 117,435.41, 162,102.89 and 69,688.75

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Solution

The fourth proportional to 117,435.41, 162,102.89 and 69,688.75 is: 96,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,435.41 : 162,102.89 = 69,688.75 : x
  2. Step 2: Convert to fraction form
    117,435.41/162,102.89 = 69,688.75/x
  3. Step 3: Cross multiply
    117,435.41x = 162,102.89 × 69,688.75
  4. Step 4: Simplify right side
    117,435.41x = 11,296,747,021.79
  5. Step 5: Solve for x
    x = 11,296,747,021.79/117,435.41
  6. Step 6: Final answer
    x = 96,195.41

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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.