Finding the Fourth Proportional to 161,623.44, 242,538.84 and 78,472.08
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Solution
The fourth proportional to 161,623.44, 242,538.84 and 78,472.08 is: 117,758.46
Step by Step Solution
- Step 1: Write the proportion equation
161,623.44 : 242,538.84 = 78,472.08 : x - Step 2: Convert to fraction form
161,623.44/242,538.84 = 78,472.08/x - Step 3: Cross multiply
161,623.44x = 242,538.84 × 78,472.08 - Step 4: Simplify right side
161,623.44x = 19,032,527,255.59 - Step 5: Solve for x
x = 19,032,527,255.59/161,623.44 - Step 6: Final answer
x = 117,758.46
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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.