Home / 119,568.24-164,894.28-78,715.04

Finding the Fourth Proportional to 119,568.24, 164,894.28 and 78,715.04

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Solution

The fourth proportional to 119,568.24, 164,894.28 and 78,715.04 is: 108,554.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,568.24 : 164,894.28 = 78,715.04 : x
  2. Step 2: Convert to fraction form
    119,568.24/164,894.28 = 78,715.04/x
  3. Step 3: Cross multiply
    119,568.24x = 164,894.28 × 78,715.04
  4. Step 4: Simplify right side
    119,568.24x = 12,979,659,845.97
  5. Step 5: Solve for x
    x = 12,979,659,845.97/119,568.24
  6. Step 6: Final answer
    x = 108,554.41

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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.