Finding the Fourth Proportional to 142,948.53, 197,277.93 and 82,530.09
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Solution
The fourth proportional to 142,948.53, 197,277.93 and 82,530.09 is: 113,896.70
Step by Step Solution
- Step 1: Write the proportion equation
142,948.53 : 197,277.93 = 82,530.09 : x - Step 2: Convert to fraction form
142,948.53/197,277.93 = 82,530.09/x - Step 3: Cross multiply
142,948.53x = 197,277.93 × 82,530.09 - Step 4: Simplify right side
142,948.53x = 16,281,365,317.91 - Step 5: Solve for x
x = 16,281,365,317.91/142,948.53 - Step 6: Final answer
x = 113,896.70
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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.