Finding the Fourth Proportional to 122,307.05, 168,802.19 and 74,588.08
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Solution
The fourth proportional to 122,307.05, 168,802.19 and 74,588.08 is: 102,942.80
Step by Step Solution
- Step 1: Write the proportion equation
122,307.05 : 168,802.19 = 74,588.08 : x - Step 2: Convert to fraction form
122,307.05/168,802.19 = 74,588.08/x - Step 3: Cross multiply
122,307.05x = 168,802.19 × 74,588.08 - Step 4: Simplify right side
122,307.05x = 12,590,630,456.95 - Step 5: Solve for x
x = 12,590,630,456.95/122,307.05 - Step 6: Final answer
x = 102,942.80
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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.