Finding the Fourth Proportional to 160,611.36, 221,644.08 and 88,990.80
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Solution
The fourth proportional to 160,611.36, 221,644.08 and 88,990.80 is: 122,807.53
Step by Step Solution
- Step 1: Write the proportion equation
160,611.36 : 221,644.08 = 88,990.80 : x - Step 2: Convert to fraction form
160,611.36/221,644.08 = 88,990.80/x - Step 3: Cross multiply
160,611.36x = 221,644.08 × 88,990.80 - Step 4: Simplify right side
160,611.36x = 19,724,283,994.46 - Step 5: Solve for x
x = 19,724,283,994.46/160,611.36 - Step 6: Final answer
x = 122,807.53
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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.