Finding the Fourth Proportional to 141,602.51, 195,416.66 and 77,942.99
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Solution
The fourth proportional to 141,602.51, 195,416.66 and 77,942.99 is: 107,564.18
Step by Step Solution
- Step 1: Write the proportion equation
141,602.51 : 195,416.66 = 77,942.99 : x - Step 2: Convert to fraction form
141,602.51/195,416.66 = 77,942.99/x - Step 3: Cross multiply
141,602.51x = 195,416.66 × 77,942.99 - Step 4: Simplify right side
141,602.51x = 15,231,357,993.99 - Step 5: Solve for x
x = 15,231,357,993.99/141,602.51 - Step 6: Final answer
x = 107,564.18
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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.