Home / 135,750.80-203,723.40-56,921.60

Finding the Fourth Proportional to 135,750.80, 203,723.40 and 56,921.60

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Solution

The fourth proportional to 135,750.80, 203,723.40 and 56,921.60 is: 85,423.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,750.80 : 203,723.40 = 56,921.60 : x
  2. Step 2: Convert to fraction form
    135,750.80/203,723.40 = 56,921.60/x
  3. Step 3: Cross multiply
    135,750.80x = 203,723.40 × 56,921.60
  4. Step 4: Simplify right side
    135,750.80x = 11,596,261,885.44
  5. Step 5: Solve for x
    x = 11,596,261,885.44/135,750.80
  6. Step 6: Final answer
    x = 85,423.16

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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.