Finding the Fourth Proportional to 126,246.96, 174,283.96 and 78,515.70
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Solution
The fourth proportional to 126,246.96, 174,283.96 and 78,515.70 is: 108,390.94
Step by Step Solution
- Step 1: Write the proportion equation
126,246.96 : 174,283.96 = 78,515.70 : x - Step 2: Convert to fraction form
126,246.96/174,283.96 = 78,515.70/x - Step 3: Cross multiply
126,246.96x = 174,283.96 × 78,515.70 - Step 4: Simplify right side
126,246.96x = 13,684,027,118.17 - Step 5: Solve for x
x = 13,684,027,118.17/126,246.96 - Step 6: Final answer
x = 108,390.94
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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.