Finding the Fourth Proportional to 117,157.93, 175,728.13 and 42,278.08
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Solution
The fourth proportional to 117,157.93, 175,728.13 and 42,278.08 is: 63,413.95
Step by Step Solution
- Step 1: Write the proportion equation
117,157.93 : 175,728.13 = 42,278.08 : x - Step 2: Convert to fraction form
117,157.93/175,728.13 = 42,278.08/x - Step 3: Cross multiply
117,157.93x = 175,728.13 × 42,278.08 - Step 4: Simplify right side
117,157.93x = 7,429,447,059.75 - Step 5: Solve for x
x = 7,429,447,059.75/117,157.93 - Step 6: Final answer
x = 63,413.95
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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.