Home / 214,123.80-320,840.10-135,096.60

Finding the Fourth Proportional to 214,123.80, 320,840.10 and 135,096.60

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Solution

The fourth proportional to 214,123.80, 320,840.10 and 135,096.60 is: 202,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,123.80 : 320,840.10 = 135,096.60 : x
  2. Step 2: Convert to fraction form
    214,123.80/320,840.10 = 135,096.60/x
  3. Step 3: Cross multiply
    214,123.80x = 320,840.10 × 135,096.60
  4. Step 4: Simplify right side
    214,123.80x = 43,344,406,653.66
  5. Step 5: Solve for x
    x = 43,344,406,653.66/214,123.80
  6. Step 6: Final answer
    x = 202,426.85

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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.