Finding the Fourth Proportional to 74,117.88, 111,221.11 and 68,088.08
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Solution
The fourth proportional to 74,117.88, 111,221.11 and 68,088.08 is: 102,172.80
Step by Step Solution
- Step 1: Write the proportion equation
74,117.88 : 111,221.11 = 68,088.08 : x - Step 2: Convert to fraction form
74,117.88/111,221.11 = 68,088.08/x - Step 3: Cross multiply
74,117.88x = 111,221.11 × 68,088.08 - Step 4: Simplify right side
74,117.88x = 7,572,831,564.82 - Step 5: Solve for x
x = 7,572,831,564.82/74,117.88 - Step 6: Final answer
x = 102,172.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.