Home / 116,629.30-174,943.95-80,859.70

Finding the Fourth Proportional to 116,629.30, 174,943.95 and 80,859.70

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Solution

The fourth proportional to 116,629.30, 174,943.95 and 80,859.70 is: 121,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,629.30 : 174,943.95 = 80,859.70 : x
  2. Step 2: Convert to fraction form
    116,629.30/174,943.95 = 80,859.70/x
  3. Step 3: Cross multiply
    116,629.30x = 174,943.95 × 80,859.70
  4. Step 4: Simplify right side
    116,629.30x = 14,145,915,313.82
  5. Step 5: Solve for x
    x = 14,145,915,313.82/116,629.30
  6. Step 6: Final answer
    x = 121,289.55

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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.