Finding the Fourth Proportional to 117,130.66, 175,728.80 and 47,059.18
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Solution
The fourth proportional to 117,130.66, 175,728.80 and 47,059.18 is: 70,601.95
Step by Step Solution
- Step 1: Write the proportion equation
117,130.66 : 175,728.80 = 47,059.18 : x - Step 2: Convert to fraction form
117,130.66/175,728.80 = 47,059.18/x - Step 3: Cross multiply
117,130.66x = 175,728.80 × 47,059.18 - Step 4: Simplify right side
117,130.66x = 8,269,653,230.38 - Step 5: Solve for x
x = 8,269,653,230.38/117,130.66 - Step 6: Final answer
x = 70,601.95
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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.