Home / 106,275.12-159,511.26-53,721.54

Finding the Fourth Proportional to 106,275.12, 159,511.26 and 53,721.54

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Solution

The fourth proportional to 106,275.12, 159,511.26 and 53,721.54 is: 80,632.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,275.12 : 159,511.26 = 53,721.54 : x
  2. Step 2: Convert to fraction form
    106,275.12/159,511.26 = 53,721.54/x
  3. Step 3: Cross multiply
    106,275.12x = 159,511.26 × 53,721.54
  4. Step 4: Simplify right side
    106,275.12x = 8,569,190,534.54
  5. Step 5: Solve for x
    x = 8,569,190,534.54/106,275.12
  6. Step 6: Final answer
    x = 80,632.14

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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.