Finding the Fourth Proportional to 122,226.90, 168,671.58 and 68,511.84
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Solution
The fourth proportional to 122,226.90, 168,671.58 and 68,511.84 is: 94,545.47
Step by Step Solution
- Step 1: Write the proportion equation
122,226.90 : 168,671.58 = 68,511.84 : x - Step 2: Convert to fraction form
122,226.90/168,671.58 = 68,511.84/x - Step 3: Cross multiply
122,226.90x = 168,671.58 × 68,511.84 - Step 4: Simplify right side
122,226.90x = 11,556,000,301.51 - Step 5: Solve for x
x = 11,556,000,301.51/122,226.90 - Step 6: Final answer
x = 94,545.47
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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.