Finding the Fourth Proportional to 142,927.84, 197,227.40 and 79,265.44
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Solution
The fourth proportional to 142,927.84, 197,227.40 and 79,265.44 is: 109,379.09
Step by Step Solution
- Step 1: Write the proportion equation
142,927.84 : 197,227.40 = 79,265.44 : x - Step 2: Convert to fraction form
142,927.84/197,227.40 = 79,265.44/x - Step 3: Cross multiply
142,927.84x = 197,227.40 × 79,265.44 - Step 4: Simplify right side
142,927.84x = 15,633,316,641.06 - Step 5: Solve for x
x = 15,633,316,641.06/142,927.84 - Step 6: Final answer
x = 109,379.09
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1.5x scale
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.