Finding the Fourth Proportional to 122,663.05, 183,994.56 and 38,423.92
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Solution
The fourth proportional to 122,663.05, 183,994.56 and 38,423.92 is: 57,635.88
Step by Step Solution
- Step 1: Write the proportion equation
122,663.05 : 183,994.56 = 38,423.92 : x - Step 2: Convert to fraction form
122,663.05/183,994.56 = 38,423.92/x - Step 3: Cross multiply
122,663.05x = 183,994.56 × 38,423.92 - Step 4: Simplify right side
122,663.05x = 7,069,792,253.88 - Step 5: Solve for x
x = 7,069,792,253.88/122,663.05 - Step 6: Final answer
x = 57,635.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.