Finding the Fourth Proportional to 112,188.18, 168,138.28 and 48,991.17
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Solution
The fourth proportional to 112,188.18, 168,138.28 and 48,991.17 is: 73,423.88
Step by Step Solution
- Step 1: Write the proportion equation
112,188.18 : 168,138.28 = 48,991.17 : x - Step 2: Convert to fraction form
112,188.18/168,138.28 = 48,991.17/x - Step 3: Cross multiply
112,188.18x = 168,138.28 × 48,991.17 - Step 4: Simplify right side
112,188.18x = 8,237,291,058.99 - Step 5: Solve for x
x = 8,237,291,058.99/112,188.18 - Step 6: Final answer
x = 73,423.88
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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.