Home / 135,525.46-187,118.49-103,638.82

Finding the Fourth Proportional to 135,525.46, 187,118.49 and 103,638.82

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Solution

The fourth proportional to 135,525.46, 187,118.49 and 103,638.82 is: 143,092.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,525.46 : 187,118.49 = 103,638.82 : x
  2. Step 2: Convert to fraction form
    135,525.46/187,118.49 = 103,638.82/x
  3. Step 3: Cross multiply
    135,525.46x = 187,118.49 × 103,638.82
  4. Step 4: Simplify right side
    135,525.46x = 19,392,739,503.78
  5. Step 5: Solve for x
    x = 19,392,739,503.78/135,525.46
  6. Step 6: Final answer
    x = 143,092.96

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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.