Home / 135,801.03-187,427.96-79,212.42

Finding the Fourth Proportional to 135,801.03, 187,427.96 and 79,212.42

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Solution

The fourth proportional to 135,801.03, 187,427.96 and 79,212.42 is: 109,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,801.03 : 187,427.96 = 79,212.42 : x
  2. Step 2: Convert to fraction form
    135,801.03/187,427.96 = 79,212.42/x
  3. Step 3: Cross multiply
    135,801.03x = 187,427.96 × 79,212.42
  4. Step 4: Simplify right side
    135,801.03x = 14,846,621,891.20
  5. Step 5: Solve for x
    x = 14,846,621,891.20/135,801.03
  6. Step 6: Final answer
    x = 109,326.28

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1.5x scale

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.