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Finding the Fourth Proportional to 126,489.56, 189,602.10 and 59,850.31

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Solution

The fourth proportional to 126,489.56, 189,602.10 and 59,850.31 is: 89,712.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,489.56 : 189,602.10 = 59,850.31 : x
  2. Step 2: Convert to fraction form
    126,489.56/189,602.10 = 59,850.31/x
  3. Step 3: Cross multiply
    126,489.56x = 189,602.10 × 59,850.31
  4. Step 4: Simplify right side
    126,489.56x = 11,347,744,461.65
  5. Step 5: Solve for x
    x = 11,347,744,461.65/126,489.56
  6. Step 6: Final answer
    x = 89,712.89

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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.