Home / 126,855.83-174,976.67-81,591.09

Finding the Fourth Proportional to 126,855.83, 174,976.67 and 81,591.09

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Solution

The fourth proportional to 126,855.83, 174,976.67 and 81,591.09 is: 112,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,855.83 : 174,976.67 = 81,591.09 : x
  2. Step 2: Convert to fraction form
    126,855.83/174,976.67 = 81,591.09/x
  3. Step 3: Cross multiply
    126,855.83x = 174,976.67 × 81,591.09
  4. Step 4: Simplify right side
    126,855.83x = 14,276,537,229.87
  5. Step 5: Solve for x
    x = 14,276,537,229.87/126,855.83
  6. Step 6: Final answer
    x = 112,541.44

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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.