Home / 126,785.64-174,924.72-84,351.36

Finding the Fourth Proportional to 126,785.64, 174,924.72 and 84,351.36

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Solution

The fourth proportional to 126,785.64, 174,924.72 and 84,351.36 is: 116,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,785.64 : 174,924.72 = 84,351.36 : x
  2. Step 2: Convert to fraction form
    126,785.64/174,924.72 = 84,351.36/x
  3. Step 3: Cross multiply
    126,785.64x = 174,924.72 × 84,351.36
  4. Step 4: Simplify right side
    126,785.64x = 14,755,138,029.62
  5. Step 5: Solve for x
    x = 14,755,138,029.62/126,785.64
  6. Step 6: Final answer
    x = 116,378.62

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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.