Home / 105,371.10-158,139.68-46,247.58

Finding the Fourth Proportional to 105,371.10, 158,139.68 and 46,247.58

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Solution

The fourth proportional to 105,371.10, 158,139.68 and 46,247.58 is: 69,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,371.10 : 158,139.68 = 46,247.58 : x
  2. Step 2: Convert to fraction form
    105,371.10/158,139.68 = 46,247.58/x
  3. Step 3: Cross multiply
    105,371.10x = 158,139.68 × 46,247.58
  4. Step 4: Simplify right side
    105,371.10x = 7,313,577,501.97
  5. Step 5: Solve for x
    x = 7,313,577,501.97/105,371.10
  6. Step 6: Final answer
    x = 69,407.81

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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.