Finding the Fourth Proportional to 122,356.03, 168,852.47 and 68,642.20
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Solution
The fourth proportional to 122,356.03, 168,852.47 and 68,642.20 is: 94,726.88
Step by Step Solution
- Step 1: Write the proportion equation
122,356.03 : 168,852.47 = 68,642.20 : x - Step 2: Convert to fraction form
122,356.03/168,852.47 = 68,642.20/x - Step 3: Cross multiply
122,356.03x = 168,852.47 × 68,642.20 - Step 4: Simplify right side
122,356.03x = 11,590,405,016.23 - Step 5: Solve for x
x = 11,590,405,016.23/122,356.03 - Step 6: Final answer
x = 94,726.88
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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.