Finding the Fourth Proportional to 106,971.95, 147,531.62 and 68,737.73
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Solution
The fourth proportional to 106,971.95, 147,531.62 and 68,737.73 is: 94,800.45
Step by Step Solution
- Step 1: Write the proportion equation
106,971.95 : 147,531.62 = 68,737.73 : x - Step 2: Convert to fraction form
106,971.95/147,531.62 = 68,737.73/x - Step 3: Cross multiply
106,971.95x = 147,531.62 × 68,737.73 - Step 4: Simplify right side
106,971.95x = 10,140,988,662.02 - Step 5: Solve for x
x = 10,140,988,662.02/106,971.95 - Step 6: Final answer
x = 94,800.45
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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.