Home / 116,866.56-175,078.40-69,381.12

Finding the Fourth Proportional to 116,866.56, 175,078.40 and 69,381.12

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Solution

The fourth proportional to 116,866.56, 175,078.40 and 69,381.12 is: 103,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,866.56 : 175,078.40 = 69,381.12 : x
  2. Step 2: Convert to fraction form
    116,866.56/175,078.40 = 69,381.12/x
  3. Step 3: Cross multiply
    116,866.56x = 175,078.40 × 69,381.12
  4. Step 4: Simplify right side
    116,866.56x = 12,147,135,479.81
  5. Step 5: Solve for x
    x = 12,147,135,479.81/116,866.56
  6. Step 6: Final answer
    x = 103,940.22

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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.