Finding the Fourth Proportional to 117,175.14, 175,417.11 and 72,658.62
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Solution
The fourth proportional to 117,175.14, 175,417.11 and 72,658.62 is: 108,773.63
Step by Step Solution
- Step 1: Write the proportion equation
117,175.14 : 175,417.11 = 72,658.62 : x - Step 2: Convert to fraction form
117,175.14/175,417.11 = 72,658.62/x - Step 3: Cross multiply
117,175.14x = 175,417.11 × 72,658.62 - Step 4: Simplify right side
117,175.14x = 12,745,565,136.99 - Step 5: Solve for x
x = 12,745,565,136.99/117,175.14 - Step 6: Final answer
x = 108,773.63
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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.