Home / 126,471.68-174,548.22-72,755.72

Finding the Fourth Proportional to 126,471.68, 174,548.22 and 72,755.72

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Solution

The fourth proportional to 126,471.68, 174,548.22 and 72,755.72 is: 100,412.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,471.68 : 174,548.22 = 72,755.72 : x
  2. Step 2: Convert to fraction form
    126,471.68/174,548.22 = 72,755.72/x
  3. Step 3: Cross multiply
    126,471.68x = 174,548.22 × 72,755.72
  4. Step 4: Simplify right side
    126,471.68x = 12,699,381,420.82
  5. Step 5: Solve for x
    x = 12,699,381,420.82/126,471.68
  6. Step 6: Final answer
    x = 100,412.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.