Finding the Fourth Proportional to 157,569.93, 236,157.79 and 78,706.17
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Solution
The fourth proportional to 157,569.93, 236,157.79 and 78,706.17 is: 117,960.80
Step by Step Solution
- Step 1: Write the proportion equation
157,569.93 : 236,157.79 = 78,706.17 : x - Step 2: Convert to fraction form
157,569.93/236,157.79 = 78,706.17/x - Step 3: Cross multiply
157,569.93x = 236,157.79 × 78,706.17 - Step 4: Simplify right side
157,569.93x = 18,587,075,166.56 - Step 5: Solve for x
x = 18,587,075,166.56/157,569.93 - Step 6: Final answer
x = 117,960.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.