Home / 135,672.21-187,238.85-75,262.33

Finding the Fourth Proportional to 135,672.21, 187,238.85 and 75,262.33

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Solution

The fourth proportional to 135,672.21, 187,238.85 and 75,262.33 is: 103,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,672.21 : 187,238.85 = 75,262.33 : x
  2. Step 2: Convert to fraction form
    135,672.21/187,238.85 = 75,262.33/x
  3. Step 3: Cross multiply
    135,672.21x = 187,238.85 × 75,262.33
  4. Step 4: Simplify right side
    135,672.21x = 14,092,031,181.33
  5. Step 5: Solve for x
    x = 14,092,031,181.33/135,672.21
  6. Step 6: Final answer
    x = 103,868.23

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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.