Finding the Fourth Proportional to 108,706.14, 149,985.96 and 62,754.54
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Solution
The fourth proportional to 108,706.14, 149,985.96 and 62,754.54 is: 86,584.80
Step by Step Solution
- Step 1: Write the proportion equation
108,706.14 : 149,985.96 = 62,754.54 : x - Step 2: Convert to fraction form
108,706.14/149,985.96 = 62,754.54/x - Step 3: Cross multiply
108,706.14x = 149,985.96 × 62,754.54 - Step 4: Simplify right side
108,706.14x = 9,412,299,926.26 - Step 5: Solve for x
x = 9,412,299,926.26/108,706.14 - Step 6: Final answer
x = 86,584.80
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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.