Home / 135,152.12-202,912.06-76,029.42

Finding the Fourth Proportional to 135,152.12, 202,912.06 and 76,029.42

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Solution

The fourth proportional to 135,152.12, 202,912.06 and 76,029.42 is: 114,147.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,152.12 : 202,912.06 = 76,029.42 : x
  2. Step 2: Convert to fraction form
    135,152.12/202,912.06 = 76,029.42/x
  3. Step 3: Cross multiply
    135,152.12x = 202,912.06 × 76,029.42
  4. Step 4: Simplify right side
    135,152.12x = 15,427,286,232.81
  5. Step 5: Solve for x
    x = 15,427,286,232.81/135,152.12
  6. Step 6: Final answer
    x = 114,147.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.