Home / 135,520.40-203,008.44-76,267.28

Finding the Fourth Proportional to 135,520.40, 203,008.44 and 76,267.28

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Solution

The fourth proportional to 135,520.40, 203,008.44 and 76,267.28 is: 114,247.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,520.40 : 203,008.44 = 76,267.28 : x
  2. Step 2: Convert to fraction form
    135,520.40/203,008.44 = 76,267.28/x
  3. Step 3: Cross multiply
    135,520.40x = 203,008.44 × 76,267.28
  4. Step 4: Simplify right side
    135,520.40x = 15,482,901,535.84
  5. Step 5: Solve for x
    x = 15,482,901,535.84/135,520.40
  6. Step 6: Final answer
    x = 114,247.76

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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.