Home / 135,438.35-186,936.02-90,118.23

Finding the Fourth Proportional to 135,438.35, 186,936.02 and 90,118.23

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Solution

The fourth proportional to 135,438.35, 186,936.02 and 90,118.23 is: 124,383.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,438.35 : 186,936.02 = 90,118.23 : x
  2. Step 2: Convert to fraction form
    135,438.35/186,936.02 = 90,118.23/x
  3. Step 3: Cross multiply
    135,438.35x = 186,936.02 × 90,118.23
  4. Step 4: Simplify right side
    135,438.35x = 16,846,343,245.64
  5. Step 5: Solve for x
    x = 16,846,343,245.64/135,438.35
  6. Step 6: Final answer
    x = 124,383.85

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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.