Finding the Fourth Proportional to 122,893.05, 169,501.86 and 92,679.65
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Solution
The fourth proportional to 122,893.05, 169,501.86 and 92,679.65 is: 127,829.62
Step by Step Solution
- Step 1: Write the proportion equation
122,893.05 : 169,501.86 = 92,679.65 : x - Step 2: Convert to fraction form
122,893.05/169,501.86 = 92,679.65/x - Step 3: Cross multiply
122,893.05x = 169,501.86 × 92,679.65 - Step 4: Simplify right side
122,893.05x = 15,709,372,211.64 - Step 5: Solve for x
x = 15,709,372,211.64/122,893.05 - Step 6: Final answer
x = 127,829.62
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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.