Home / 135,559.51-187,067.03-75,131.19

Finding the Fourth Proportional to 135,559.51, 187,067.03 and 75,131.19

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Solution

The fourth proportional to 135,559.51, 187,067.03 and 75,131.19 is: 103,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,559.51 : 187,067.03 = 75,131.19 : x
  2. Step 2: Convert to fraction form
    135,559.51/187,067.03 = 75,131.19/x
  3. Step 3: Cross multiply
    135,559.51x = 187,067.03 × 75,131.19
  4. Step 4: Simplify right side
    135,559.51x = 14,054,567,638.33
  5. Step 5: Solve for x
    x = 14,054,567,638.33/135,559.51
  6. Step 6: Final answer
    x = 103,678.21

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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.