Home / 135,767.40-203,650.92-76,576.20

Finding the Fourth Proportional to 135,767.40, 203,650.92 and 76,576.20

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Solution

The fourth proportional to 135,767.40, 203,650.92 and 76,576.20 is: 114,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,767.40 : 203,650.92 = 76,576.20 : x
  2. Step 2: Convert to fraction form
    135,767.40/203,650.92 = 76,576.20/x
  3. Step 3: Cross multiply
    135,767.40x = 203,650.92 × 76,576.20
  4. Step 4: Simplify right side
    135,767.40x = 15,594,813,580.10
  5. Step 5: Solve for x
    x = 15,594,813,580.10/135,767.40
  6. Step 6: Final answer
    x = 114,864.20

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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.