Finding the Fourth Proportional to 117,171.05, 175,720.11 and 42,281.43
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Solution
The fourth proportional to 117,171.05, 175,720.11 and 42,281.43 is: 63,408.99
Step by Step Solution
- Step 1: Write the proportion equation
117,171.05 : 175,720.11 = 42,281.43 : x - Step 2: Convert to fraction form
117,171.05/175,720.11 = 42,281.43/x - Step 3: Cross multiply
117,171.05x = 175,720.11 × 42,281.43 - Step 4: Simplify right side
117,171.05x = 7,429,697,530.56 - Step 5: Solve for x
x = 7,429,697,530.56/117,171.05 - Step 6: Final answer
x = 63,408.99
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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.