Home / 135,984.56-203,803.76-76,853.20

Finding the Fourth Proportional to 135,984.56, 203,803.76 and 76,853.20

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Solution

The fourth proportional to 135,984.56, 203,803.76 and 76,853.20 is: 115,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,984.56 : 203,803.76 = 76,853.20 : x
  2. Step 2: Convert to fraction form
    135,984.56/203,803.76 = 76,853.20/x
  3. Step 3: Cross multiply
    135,984.56x = 203,803.76 × 76,853.20
  4. Step 4: Simplify right side
    135,984.56x = 15,662,971,128.03
  5. Step 5: Solve for x
    x = 15,662,971,128.03/135,984.56
  6. Step 6: Final answer
    x = 115,181.98

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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.