Finding the Fourth Proportional to 122,557.42, 169,129.92 and 68,844.70
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Solution
The fourth proportional to 122,557.42, 169,129.92 and 68,844.70 is: 95,006.07
Step by Step Solution
- Step 1: Write the proportion equation
122,557.42 : 169,129.92 = 68,844.70 : x - Step 2: Convert to fraction form
122,557.42/169,129.92 = 68,844.70/x - Step 3: Cross multiply
122,557.42x = 169,129.92 × 68,844.70 - Step 4: Simplify right side
122,557.42x = 11,643,698,603.42 - Step 5: Solve for x
x = 11,643,698,603.42/122,557.42 - Step 6: Final answer
x = 95,006.07
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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.