Finding the Fourth Proportional to 102,938.73, 154,319.23 and 39,803.08
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Solution
The fourth proportional to 102,938.73, 154,319.23 and 39,803.08 is: 59,670.26
Step by Step Solution
- Step 1: Write the proportion equation
102,938.73 : 154,319.23 = 39,803.08 : x - Step 2: Convert to fraction form
102,938.73/154,319.23 = 39,803.08/x - Step 3: Cross multiply
102,938.73x = 154,319.23 × 39,803.08 - Step 4: Simplify right side
102,938.73x = 6,142,380,657.23 - Step 5: Solve for x
x = 6,142,380,657.23/102,938.73 - Step 6: Final answer
x = 59,670.26
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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.