Finding the Fourth Proportional to 125,644.78, 173,386.87 and 68,282.74
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Solution
The fourth proportional to 125,644.78, 173,386.87 and 68,282.74 is: 94,228.59
Step by Step Solution
- Step 1: Write the proportion equation
125,644.78 : 173,386.87 = 68,282.74 : x - Step 2: Convert to fraction form
125,644.78/173,386.87 = 68,282.74/x - Step 3: Cross multiply
125,644.78x = 173,386.87 × 68,282.74 - Step 4: Simplify right side
125,644.78x = 11,839,330,563.62 - Step 5: Solve for x
x = 11,839,330,563.62/125,644.78 - Step 6: Final answer
x = 94,228.59
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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.