Home / 185,298.43-255,711.82-100,415.49

Finding the Fourth Proportional to 185,298.43, 255,711.82 and 100,415.49

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Solution

The fourth proportional to 185,298.43, 255,711.82 and 100,415.49 is: 138,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,298.43 : 255,711.82 = 100,415.49 : x
  2. Step 2: Convert to fraction form
    185,298.43/255,711.82 = 100,415.49/x
  3. Step 3: Cross multiply
    185,298.43x = 255,711.82 × 100,415.49
  4. Step 4: Simplify right side
    185,298.43x = 25,677,427,704.09
  5. Step 5: Solve for x
    x = 25,677,427,704.09/185,298.43
  6. Step 6: Final answer
    x = 138,573.37

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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.