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Finding the Fourth Proportional to 126,559.75, 174,602.22 and 72,815.84

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Solution

The fourth proportional to 126,559.75, 174,602.22 and 72,815.84 is: 100,456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,559.75 : 174,602.22 = 72,815.84 : x
  2. Step 2: Convert to fraction form
    126,559.75/174,602.22 = 72,815.84/x
  3. Step 3: Cross multiply
    126,559.75x = 174,602.22 × 72,815.84
  4. Step 4: Simplify right side
    126,559.75x = 12,713,807,315.16
  5. Step 5: Solve for x
    x = 12,713,807,315.16/126,559.75
  6. Step 6: Final answer
    x = 100,456.96

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