Home / 135,771.40-203,656.92-76,580.20

Finding the Fourth Proportional to 135,771.40, 203,656.92 and 76,580.20

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Solution

The fourth proportional to 135,771.40, 203,656.92 and 76,580.20 is: 114,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,771.40 : 203,656.92 = 76,580.20 : x
  2. Step 2: Convert to fraction form
    135,771.40/203,656.92 = 76,580.20/x
  3. Step 3: Cross multiply
    135,771.40x = 203,656.92 × 76,580.20
  4. Step 4: Simplify right side
    135,771.40x = 15,596,087,664.98
  5. Step 5: Solve for x
    x = 15,596,087,664.98/135,771.40
  6. Step 6: Final answer
    x = 114,870.20

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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.