Finding the Fourth Proportional to 122,957.16, 168,574.88 and 120,715.48
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Solution
The fourth proportional to 122,957.16, 168,574.88 and 120,715.48 is: 165,501.53
Step by Step Solution
- Step 1: Write the proportion equation
122,957.16 : 168,574.88 = 120,715.48 : x - Step 2: Convert to fraction form
122,957.16/168,574.88 = 120,715.48/x - Step 3: Cross multiply
122,957.16x = 168,574.88 × 120,715.48 - Step 4: Simplify right side
122,957.16x = 20,349,597,555.14 - Step 5: Solve for x
x = 20,349,597,555.14/122,957.16 - Step 6: Final answer
x = 165,501.53
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.