Finding the Fourth Proportional to 124,631.76, 171,992.70 and 68,044.44
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Solution
The fourth proportional to 124,631.76, 171,992.70 and 68,044.44 is: 93,901.80
Step by Step Solution
- Step 1: Write the proportion equation
124,631.76 : 171,992.70 = 68,044.44 : x - Step 2: Convert to fraction form
124,631.76/171,992.70 = 68,044.44/x - Step 3: Cross multiply
124,631.76x = 171,992.70 × 68,044.44 - Step 4: Simplify right side
124,631.76x = 11,703,146,955.59 - Step 5: Solve for x
x = 11,703,146,955.59/124,631.76 - Step 6: Final answer
x = 93,901.80
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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.