Home / 99,786.36-137,708.04-54,467.16

Finding the Fourth Proportional to 99,786.36, 137,708.04 and 54,467.16

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Solution

The fourth proportional to 99,786.36, 137,708.04 and 54,467.16 is: 75,166.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,786.36 : 137,708.04 = 54,467.16 : x
  2. Step 2: Convert to fraction form
    99,786.36/137,708.04 = 54,467.16/x
  3. Step 3: Cross multiply
    99,786.36x = 137,708.04 × 54,467.16
  4. Step 4: Simplify right side
    99,786.36x = 7,500,565,847.97
  5. Step 5: Solve for x
    x = 7,500,565,847.97/99,786.36
  6. Step 6: Final answer
    x = 75,166.24

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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.