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Finding the Fourth Proportional to 126,511.88, 189,761.34 and 37,766.12

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Solution

The fourth proportional to 126,511.88, 189,761.34 and 37,766.12 is: 56,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,511.88 : 189,761.34 = 37,766.12 : x
  2. Step 2: Convert to fraction form
    126,511.88/189,761.34 = 37,766.12/x
  3. Step 3: Cross multiply
    126,511.88x = 189,761.34 × 37,766.12
  4. Step 4: Simplify right side
    126,511.88x = 7,166,549,537.80
  5. Step 5: Solve for x
    x = 7,166,549,537.80/126,511.88
  6. Step 6: Final answer
    x = 56,647.25

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1.5x scale

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.