Home / 135,954.28-203,868-51,730.12

Finding the Fourth Proportional to 135,954.28, 203,868 and 51,730.12

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Solution

The fourth proportional to 135,954.28, 203,868 and 51,730.12 is: 77,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,954.28 : 203,868 = 51,730.12 : x
  2. Step 2: Convert to fraction form
    135,954.28/203,868 = 51,730.12/x
  3. Step 3: Cross multiply
    135,954.28x = 203,868 × 51,730.12
  4. Step 4: Simplify right side
    135,954.28x = 10,546,116,104.16
  5. Step 5: Solve for x
    x = 10,546,116,104.16/135,954.28
  6. Step 6: Final answer
    x = 77,571.05

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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.