Finding the Fourth Proportional to 141,392.37, 195,122.79 and 77,730.63
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Solution
The fourth proportional to 141,392.37, 195,122.79 and 77,730.63 is: 107,268.99
Step by Step Solution
- Step 1: Write the proportion equation
141,392.37 : 195,122.79 = 77,730.63 : x - Step 2: Convert to fraction form
141,392.37/195,122.79 = 77,730.63/x - Step 3: Cross multiply
141,392.37x = 195,122.79 × 77,730.63 - Step 4: Simplify right side
141,392.37x = 15,167,017,394.06 - Step 5: Solve for x
x = 15,167,017,394.06/141,392.37 - Step 6: Final answer
x = 107,268.99
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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.