Finding the Fourth Proportional to 142,965.24, 197,282.64 and 79,300.84
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Solution
The fourth proportional to 142,965.24, 197,282.64 and 79,300.84 is: 109,429.95
Step by Step Solution
- Step 1: Write the proportion equation
142,965.24 : 197,282.64 = 79,300.84 : x - Step 2: Convert to fraction form
142,965.24/197,282.64 = 79,300.84/x - Step 3: Cross multiply
142,965.24x = 197,282.64 × 79,300.84 - Step 4: Simplify right side
142,965.24x = 15,644,679,069.42 - Step 5: Solve for x
x = 15,644,679,069.42/142,965.24 - Step 6: Final answer
x = 109,429.95
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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.