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Finding the Fourth Proportional to 126,409.31, 189,669.29 and 59,896.91

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Solution

The fourth proportional to 126,409.31, 189,669.29 and 59,896.91 is: 89,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,409.31 : 189,669.29 = 59,896.91 : x
  2. Step 2: Convert to fraction form
    126,409.31/189,669.29 = 59,896.91/x
  3. Step 3: Cross multiply
    126,409.31x = 189,669.29 × 59,896.91
  4. Step 4: Simplify right side
    126,409.31x = 11,360,604,093.41
  5. Step 5: Solve for x
    x = 11,360,604,093.41/126,409.31
  6. Step 6: Final answer
    x = 89,871.58

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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.