Finding the Fourth Proportional to 122,564.08, 169,120.01 and 68,838.80
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Solution
The fourth proportional to 122,564.08, 169,120.01 and 68,838.80 is: 94,987.20
Step by Step Solution
- Step 1: Write the proportion equation
122,564.08 : 169,120.01 = 68,838.80 : x - Step 2: Convert to fraction form
122,564.08/169,120.01 = 68,838.80/x - Step 3: Cross multiply
122,564.08x = 169,120.01 × 68,838.80 - Step 4: Simplify right side
122,564.08x = 11,642,018,200.19 - Step 5: Solve for x
x = 11,642,018,200.19/122,564.08 - Step 6: Final answer
x = 94,987.20
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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.