Home / 83,475.32-115,128.92-73,382.36

Finding the Fourth Proportional to 83,475.32, 115,128.92 and 73,382.36

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Solution

The fourth proportional to 83,475.32, 115,128.92 and 73,382.36 is: 101,208.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,475.32 : 115,128.92 = 73,382.36 : x
  2. Step 2: Convert to fraction form
    83,475.32/115,128.92 = 73,382.36/x
  3. Step 3: Cross multiply
    83,475.32x = 115,128.92 × 73,382.36
  4. Step 4: Simplify right side
    83,475.32x = 8,448,430,911.29
  5. Step 5: Solve for x
    x = 8,448,430,911.29/83,475.32
  6. Step 6: Final answer
    x = 101,208.73

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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.