Finding the Fourth Proportional to 117,200.70, 175,802.12 and 28,454.99
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Solution
The fourth proportional to 117,200.70, 175,802.12 and 28,454.99 is: 42,682.74
Step by Step Solution
- Step 1: Write the proportion equation
117,200.70 : 175,802.12 = 28,454.99 : x - Step 2: Convert to fraction form
117,200.70/175,802.12 = 28,454.99/x - Step 3: Cross multiply
117,200.70x = 175,802.12 × 28,454.99 - Step 4: Simplify right side
117,200.70x = 5,002,446,545.29 - Step 5: Solve for x
x = 5,002,446,545.29/117,200.70 - Step 6: Final answer
x = 42,682.74
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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.