Finding the Fourth Proportional to 132,569.48, 182,946.21 and 72,140.09
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Solution
The fourth proportional to 132,569.48, 182,946.21 and 72,140.09 is: 99,553.50
Step by Step Solution
- Step 1: Write the proportion equation
132,569.48 : 182,946.21 = 72,140.09 : x - Step 2: Convert to fraction form
132,569.48/182,946.21 = 72,140.09/x - Step 3: Cross multiply
132,569.48x = 182,946.21 × 72,140.09 - Step 4: Simplify right side
132,569.48x = 13,197,756,054.56 - Step 5: Solve for x
x = 13,197,756,054.56/132,569.48 - Step 6: Final answer
x = 99,553.50
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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.