Finding the Fourth Proportional to 143,557.27, 198,107.06 and 79,895.05
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Solution
The fourth proportional to 143,557.27, 198,107.06 and 79,895.05 is: 110,254.07
Step by Step Solution
- Step 1: Write the proportion equation
143,557.27 : 198,107.06 = 79,895.05 : x - Step 2: Convert to fraction form
143,557.27/198,107.06 = 79,895.05/x - Step 3: Cross multiply
143,557.27x = 198,107.06 × 79,895.05 - Step 4: Simplify right side
143,557.27x = 15,827,772,569.31 - Step 5: Solve for x
x = 15,827,772,569.31/143,557.27 - Step 6: Final answer
x = 110,254.07
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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.