Finding the Fourth Proportional to 109,817.55, 164,908.52 and 68,526.99
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Solution
The fourth proportional to 109,817.55, 164,908.52 and 68,526.99 is: 102,904.17
Step by Step Solution
- Step 1: Write the proportion equation
109,817.55 : 164,908.52 = 68,526.99 : x - Step 2: Convert to fraction form
109,817.55/164,908.52 = 68,526.99/x - Step 3: Cross multiply
109,817.55x = 164,908.52 × 68,526.99 - Step 4: Simplify right side
109,817.55x = 11,300,684,158.32 - Step 5: Solve for x
x = 11,300,684,158.32/109,817.55 - Step 6: Final answer
x = 102,904.17
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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.