Finding the Fourth Proportional to 117,569.24, 162,271.11 and 72,285.99
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Solution
The fourth proportional to 117,569.24, 162,271.11 and 72,285.99 is: 99,770.38
Step by Step Solution
- Step 1: Write the proportion equation
117,569.24 : 162,271.11 = 72,285.99 : x - Step 2: Convert to fraction form
117,569.24/162,271.11 = 72,285.99/x - Step 3: Cross multiply
117,569.24x = 162,271.11 × 72,285.99 - Step 4: Simplify right side
117,569.24x = 11,729,927,834.75 - Step 5: Solve for x
x = 11,729,927,834.75/117,569.24 - Step 6: Final answer
x = 99,770.38
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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.