Finding the Fourth Proportional to 117,747.08, 162,421.58 and 74,069.99
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Solution
The fourth proportional to 117,747.08, 162,421.58 and 74,069.99 is: 102,172.94
Step by Step Solution
- Step 1: Write the proportion equation
117,747.08 : 162,421.58 = 74,069.99 : x - Step 2: Convert to fraction form
117,747.08/162,421.58 = 74,069.99/x - Step 3: Cross multiply
117,747.08x = 162,421.58 × 74,069.99 - Step 4: Simplify right side
117,747.08x = 12,030,565,397.61 - Step 5: Solve for x
x = 12,030,565,397.61/117,747.08 - Step 6: Final answer
x = 102,172.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.