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Finding the Fourth Proportional to 126,051.40, 188,846.70 and 102,550.60

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Solution

The fourth proportional to 126,051.40, 188,846.70 and 102,550.60 is: 153,638.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,051.40 : 188,846.70 = 102,550.60 : x
  2. Step 2: Convert to fraction form
    126,051.40/188,846.70 = 102,550.60/x
  3. Step 3: Cross multiply
    126,051.40x = 188,846.70 × 102,550.60
  4. Step 4: Simplify right side
    126,051.40x = 19,366,342,393.02
  5. Step 5: Solve for x
    x = 19,366,342,393.02/126,051.40
  6. Step 6: Final answer
    x = 153,638.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.